Refactor route manager to use sync.Once for wgInterface access

- Added `toInterface` helper to ensure `wgInterface.ToInterface()` is called once.
- Updated route addition/removal methods to use `toInterface` for efficiency.

client/android/login.go

@@ -3,15 +3,7 @@ package android
 import (
 	"context"
 	"fmt"
-	"time"
 
-	"github.com/cenkalti/backoff/v4"
-	log "github.com/sirupsen/logrus"
-	"google.golang.org/grpc/codes"
-	gstatus "google.golang.org/grpc/status"
-
-	"github.com/netbirdio/netbird/client/cmd"
-	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/client/internal/auth"
 	"github.com/netbirdio/netbird/client/internal/profilemanager"
 	"github.com/netbirdio/netbird/client/system"
@@ -84,34 +76,21 @@ func (a *Auth) SaveConfigIfSSOSupported(listener SSOListener) {
 }
 
 func (a *Auth) saveConfigIfSSOSupported() (bool, error) {
-	supportsSSO := true
-	err := a.withBackOff(a.ctx, func() (err error) {
-		_, err = internal.GetPKCEAuthorizationFlowInfo(a.ctx, a.config.PrivateKey, a.config.ManagementURL, nil)
-		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.NotFound || s.Code() == codes.Unimplemented) {
-			_, err = internal.GetDeviceAuthorizationFlowInfo(a.ctx, a.config.PrivateKey, a.config.ManagementURL)
-			s, ok := gstatus.FromError(err)
-			if !ok {
-				return err
-			}
-			if s.Code() == codes.NotFound || s.Code() == codes.Unimplemented {
-				supportsSSO = false
-				err = nil
-			}
+	authClient, err := auth.NewAuth(a.ctx, a.config.PrivateKey, a.config.ManagementURL, a.config)
+	if err != nil {
+		return false, fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
 
-			return err
-		}
-
-		return err
-	})
+	supportsSSO, err := authClient.IsSSOSupported(a.ctx)
+	if err != nil {
+		return false, fmt.Errorf("failed to check SSO support: %v", err)
+	}
 
 	if !supportsSSO {
 		return false, nil
 	}
 
-	if err != nil {
-		return false, fmt.Errorf("backoff cycle failed: %v", err)
-	}
-
 	err = profilemanager.WriteOutConfig(a.cfgPath, a.config)
 	return true, err
 }
@@ -129,19 +108,17 @@ func (a *Auth) LoginWithSetupKeyAndSaveConfig(resultListener ErrListener, setupK
 }
 
 func (a *Auth) loginWithSetupKeyAndSaveConfig(setupKey string, deviceName string) error {
+	authClient, err := auth.NewAuth(a.ctx, a.config.PrivateKey, a.config.ManagementURL, a.config)
+	if err != nil {
+		return fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
+
 	//nolint
 	ctxWithValues := context.WithValue(a.ctx, system.DeviceNameCtxKey, deviceName)
-
-	err := a.withBackOff(a.ctx, func() error {
-		backoffErr := internal.Login(ctxWithValues, a.config, setupKey, "")
-		if s, ok := gstatus.FromError(backoffErr); ok && (s.Code() == codes.PermissionDenied) {
-			// we got an answer from management, exit backoff earlier
-			return backoff.Permanent(backoffErr)
-		}
-		return backoffErr
-	})
+	err, _ = authClient.Login(ctxWithValues, setupKey, "")
 	if err != nil {
-		return fmt.Errorf("backoff cycle failed: %v", err)
+		return fmt.Errorf("login failed: %v", err)
 	}
 
 	return profilemanager.WriteOutConfig(a.cfgPath, a.config)
@@ -160,49 +137,41 @@ func (a *Auth) Login(resultListener ErrListener, urlOpener URLOpener, isAndroidT
 }
 
 func (a *Auth) login(urlOpener URLOpener, isAndroidTV bool) error {
-	var needsLogin bool
+	authClient, err := auth.NewAuth(a.ctx, a.config.PrivateKey, a.config.ManagementURL, a.config)
+	if err != nil {
+		return fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
 
 	// check if we need to generate JWT token
-	err := a.withBackOff(a.ctx, func() (err error) {
-		needsLogin, err = internal.IsLoginRequired(a.ctx, a.config)
-		return
-	})
+	needsLogin, err := authClient.IsLoginRequired(a.ctx)
 	if err != nil {
-		return fmt.Errorf("backoff cycle failed: %v", err)
+		return fmt.Errorf("failed to check login requirement: %v", err)
 	}
 
 	jwtToken := ""
 	if needsLogin {
-		tokenInfo, err := a.foregroundGetTokenInfo(urlOpener, isAndroidTV)
+		tokenInfo, err := a.foregroundGetTokenInfo(authClient, urlOpener, isAndroidTV)
 		if err != nil {
 			return fmt.Errorf("interactive sso login failed: %v", err)
 		}
 		jwtToken = tokenInfo.GetTokenToUse()
 	}
 
-	err = a.withBackOff(a.ctx, func() error {
-		err := internal.Login(a.ctx, a.config, "", jwtToken)
-
-		if err == nil {
-			go urlOpener.OnLoginSuccess()
-		}
-
-		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.InvalidArgument || s.Code() == codes.PermissionDenied) {
-			return nil
-		}
-		return err
-	})
+	err, _ = authClient.Login(a.ctx, "", jwtToken)
 	if err != nil {
-		return fmt.Errorf("backoff cycle failed: %v", err)
+		return fmt.Errorf("login failed: %v", err)
 	}
 
+	go urlOpener.OnLoginSuccess()
+
 	return nil
 }
 
-func (a *Auth) foregroundGetTokenInfo(urlOpener URLOpener, isAndroidTV bool) (*auth.TokenInfo, error) {
-	oAuthFlow, err := auth.NewOAuthFlow(a.ctx, a.config, false, isAndroidTV, "")
+func (a *Auth) foregroundGetTokenInfo(authClient *auth.Auth, urlOpener URLOpener, isAndroidTV bool) (*auth.TokenInfo, error) {
+	oAuthFlow, err := authClient.GetOAuthFlow(a.ctx, isAndroidTV)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("failed to get OAuth flow: %v", err)
 	}
 
 	flowInfo, err := oAuthFlow.RequestAuthInfo(context.TODO())
@@ -212,22 +181,10 @@ func (a *Auth) foregroundGetTokenInfo(urlOpener URLOpener, isAndroidTV bool) (*a
 
 	go urlOpener.Open(flowInfo.VerificationURIComplete, flowInfo.UserCode)
 
-	waitTimeout := time.Duration(flowInfo.ExpiresIn) * time.Second
-	waitCTX, cancel := context.WithTimeout(a.ctx, waitTimeout)
-	defer cancel()
-	tokenInfo, err := oAuthFlow.WaitToken(waitCTX, flowInfo)
+	tokenInfo, err := oAuthFlow.WaitToken(a.ctx, flowInfo)
 	if err != nil {
 		return nil, fmt.Errorf("waiting for browser login failed: %v", err)
 	}
 
 	return &tokenInfo, nil
 }
-
-func (a *Auth) withBackOff(ctx context.Context, bf func() error) error {
-	return backoff.RetryNotify(
-		bf,
-		backoff.WithContext(cmd.CLIBackOffSettings, ctx),
-		func(err error, duration time.Duration) {
-			log.Warnf("retrying Login to the Management service in %v due to error %v", duration, err)
-		})
-}

client/cmd/login.go

@@ -7,7 +7,6 @@ import (
 	"os/user"
 	"runtime"
 	"strings"
-	"time"
 
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -277,18 +276,19 @@ func handleSSOLogin(ctx context.Context, cmd *cobra.Command, loginResp *proto.Lo
 }
 
 func foregroundLogin(ctx context.Context, cmd *cobra.Command, config *profilemanager.Config, setupKey, profileName string) error {
+	authClient, err := auth.NewAuth(ctx, config.PrivateKey, config.ManagementURL, config)
+	if err != nil {
+		return fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
+
 	needsLogin := false
 
-	err := WithBackOff(func() error {
-		err := internal.Login(ctx, config, "", "")
-		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.InvalidArgument || s.Code() == codes.PermissionDenied) {
-			needsLogin = true
-			return nil
-		}
-		return err
-	})
-	if err != nil {
-		return fmt.Errorf("backoff cycle failed: %v", err)
+	err, isAuthError := authClient.Login(ctx, "", "")
+	if isAuthError {
+		needsLogin = true
+	} else if err != nil {
+		return fmt.Errorf("login check failed: %v", err)
 	}
 
 	jwtToken := ""
@@ -300,23 +300,9 @@ func foregroundLogin(ctx context.Context, cmd *cobra.Command, config *profileman
 		jwtToken = tokenInfo.GetTokenToUse()
 	}
 
-	var lastError error
-
-	err = WithBackOff(func() error {
-		err := internal.Login(ctx, config, setupKey, jwtToken)
-		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.InvalidArgument || s.Code() == codes.PermissionDenied) {
-			lastError = err
-			return nil
-		}
-		return err
-	})
-
-	if lastError != nil {
-		return fmt.Errorf("login failed: %v", lastError)
-	}
-
+	err, _ = authClient.Login(ctx, setupKey, jwtToken)
 	if err != nil {
-		return fmt.Errorf("backoff cycle failed: %v", err)
+		return fmt.Errorf("login failed: %v", err)
 	}
 
 	return nil
@@ -344,11 +330,7 @@ func foregroundGetTokenInfo(ctx context.Context, cmd *cobra.Command, config *pro
 
 	openURL(cmd, flowInfo.VerificationURIComplete, flowInfo.UserCode, noBrowser)
 
-	waitTimeout := time.Duration(flowInfo.ExpiresIn) * time.Second
-	waitCTX, c := context.WithTimeout(context.TODO(), waitTimeout)
-	defer c()
-
-	tokenInfo, err := oAuthFlow.WaitToken(waitCTX, flowInfo)
+	tokenInfo, err := oAuthFlow.WaitToken(context.TODO(), flowInfo)
 	if err != nil {
 		return nil, fmt.Errorf("waiting for browser login failed: %v", err)
 	}

client/embed/embed.go

@@ -16,6 +16,7 @@ import (
 
 	"github.com/netbirdio/netbird/client/iface/netstack"
 	"github.com/netbirdio/netbird/client/internal"
+	"github.com/netbirdio/netbird/client/internal/auth"
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/internal/profilemanager"
 	sshcommon "github.com/netbirdio/netbird/client/ssh"
@@ -68,6 +69,8 @@ type Options struct {
 	StatePath string
 	// DisableClientRoutes disables the client routes
 	DisableClientRoutes bool
+	// BlockInbound blocks all inbound connections from peers
+	BlockInbound bool
 }
 
 // validateCredentials checks that exactly one credential type is provided
@@ -136,6 +139,7 @@ func New(opts Options) (*Client, error) {
 		PreSharedKey:        &opts.PreSharedKey,
 		DisableServerRoutes: &t,
 		DisableClientRoutes: &opts.DisableClientRoutes,
+		BlockInbound:        &opts.BlockInbound,
 	}
 	if opts.ConfigPath != "" {
 		config, err = profilemanager.UpdateOrCreateConfig(input)
@@ -176,7 +180,13 @@ func (c *Client) Start(startCtx context.Context) error {
 
 	// nolint:staticcheck
 	ctx = context.WithValue(ctx, system.DeviceNameCtxKey, c.deviceName)
-	if err := internal.Login(ctx, c.config, c.setupKey, c.jwtToken); err != nil {
+	authClient, err := auth.NewAuth(ctx, c.config.PrivateKey, c.config.ManagementURL, c.config)
+	if err != nil {
+		return fmt.Errorf("create auth client: %w", err)
+	}
+	defer authClient.Close()
+
+	if err, _ := authClient.Login(ctx, c.setupKey, c.jwtToken); err != nil {
 		return fmt.Errorf("login: %w", err)
 	}
 

client/firewall/iptables/manager_linux.go

@@ -83,6 +83,10 @@ func (m *Manager) Init(stateManager *statemanager.Manager) error {
 		return fmt.Errorf("acl manager init: %w", err)
 	}
 
+	if err := m.initNoTrackChain(); err != nil {
+		return fmt.Errorf("init notrack chain: %w", err)
+	}
+
 	// persist early to ensure cleanup of chains
 	go func() {
 		if err := stateManager.PersistState(context.Background()); err != nil {
@@ -177,6 +181,10 @@ func (m *Manager) Close(stateManager *statemanager.Manager) error {
 
 	var merr *multierror.Error
 
+	if err := m.cleanupNoTrackChain(); err != nil {
+		merr = multierror.Append(merr, fmt.Errorf("cleanup notrack chain: %w", err))
+	}
+
 	if err := m.aclMgr.Reset(); err != nil {
 		merr = multierror.Append(merr, fmt.Errorf("reset acl manager: %w", err))
 	}
@@ -277,6 +285,125 @@ func (m *Manager) RemoveInboundDNAT(localAddr netip.Addr, protocol firewall.Prot
 	return m.router.RemoveInboundDNAT(localAddr, protocol, sourcePort, targetPort)
 }
 
+const (
+	chainNameRaw = "NETBIRD-RAW"
+	chainOUTPUT  = "OUTPUT"
+	tableRaw     = "raw"
+)
+
+// SetupEBPFProxyNoTrack creates notrack rules for eBPF proxy loopback traffic.
+// This prevents conntrack from tracking WireGuard proxy traffic on loopback, which
+// can interfere with MASQUERADE rules (e.g., from container runtimes like Podman/netavark).
+//
+// Traffic flows that need NOTRACK:
+//
+//  1. Egress: WireGuard -> fake endpoint (before eBPF rewrite)
+//     src=127.0.0.1:wgPort -> dst=127.0.0.1:fakePort
+//     Matched by: sport=wgPort
+//
+//  2. Egress: Proxy -> WireGuard (via raw socket)
+//     src=127.0.0.1:fakePort -> dst=127.0.0.1:wgPort
+//     Matched by: dport=wgPort
+//
+//  3. Ingress: Packets to WireGuard
+//     dst=127.0.0.1:wgPort
+//     Matched by: dport=wgPort
+//
+//  4. Ingress: Packets to proxy (after eBPF rewrite)
+//     dst=127.0.0.1:proxyPort
+//     Matched by: dport=proxyPort
+//
+// Rules are cleaned up when the firewall manager is closed.
+func (m *Manager) SetupEBPFProxyNoTrack(proxyPort, wgPort uint16) error {
+	m.mutex.Lock()
+	defer m.mutex.Unlock()
+
+	wgPortStr := fmt.Sprintf("%d", wgPort)
+	proxyPortStr := fmt.Sprintf("%d", proxyPort)
+
+	// Egress rules: match outgoing loopback UDP packets
+	outputRuleSport := []string{"-o", "lo", "-s", "127.0.0.1", "-d", "127.0.0.1", "-p", "udp", "--sport", wgPortStr, "-j", "NOTRACK"}
+	if err := m.ipv4Client.AppendUnique(tableRaw, chainNameRaw, outputRuleSport...); err != nil {
+		return fmt.Errorf("add output sport notrack rule: %w", err)
+	}
+
+	outputRuleDport := []string{"-o", "lo", "-s", "127.0.0.1", "-d", "127.0.0.1", "-p", "udp", "--dport", wgPortStr, "-j", "NOTRACK"}
+	if err := m.ipv4Client.AppendUnique(tableRaw, chainNameRaw, outputRuleDport...); err != nil {
+		return fmt.Errorf("add output dport notrack rule: %w", err)
+	}
+
+	// Ingress rules: match incoming loopback UDP packets
+	preroutingRuleWg := []string{"-i", "lo", "-s", "127.0.0.1", "-d", "127.0.0.1", "-p", "udp", "--dport", wgPortStr, "-j", "NOTRACK"}
+	if err := m.ipv4Client.AppendUnique(tableRaw, chainNameRaw, preroutingRuleWg...); err != nil {
+		return fmt.Errorf("add prerouting wg notrack rule: %w", err)
+	}
+
+	preroutingRuleProxy := []string{"-i", "lo", "-s", "127.0.0.1", "-d", "127.0.0.1", "-p", "udp", "--dport", proxyPortStr, "-j", "NOTRACK"}
+	if err := m.ipv4Client.AppendUnique(tableRaw, chainNameRaw, preroutingRuleProxy...); err != nil {
+		return fmt.Errorf("add prerouting proxy notrack rule: %w", err)
+	}
+
+	log.Debugf("set up ebpf proxy notrack rules for ports %d,%d", proxyPort, wgPort)
+	return nil
+}
+
+func (m *Manager) initNoTrackChain() error {
+	if err := m.cleanupNoTrackChain(); err != nil {
+		log.Debugf("cleanup notrack chain: %v", err)
+	}
+
+	if err := m.ipv4Client.NewChain(tableRaw, chainNameRaw); err != nil {
+		return fmt.Errorf("create chain: %w", err)
+	}
+
+	jumpRule := []string{"-j", chainNameRaw}
+
+	if err := m.ipv4Client.InsertUnique(tableRaw, chainOUTPUT, 1, jumpRule...); err != nil {
+		if delErr := m.ipv4Client.DeleteChain(tableRaw, chainNameRaw); delErr != nil {
+			log.Debugf("delete orphan chain: %v", delErr)
+		}
+		return fmt.Errorf("add output jump rule: %w", err)
+	}
+
+	if err := m.ipv4Client.InsertUnique(tableRaw, chainPREROUTING, 1, jumpRule...); err != nil {
+		if delErr := m.ipv4Client.DeleteIfExists(tableRaw, chainOUTPUT, jumpRule...); delErr != nil {
+			log.Debugf("delete output jump rule: %v", delErr)
+		}
+		if delErr := m.ipv4Client.DeleteChain(tableRaw, chainNameRaw); delErr != nil {
+			log.Debugf("delete orphan chain: %v", delErr)
+		}
+		return fmt.Errorf("add prerouting jump rule: %w", err)
+	}
+
+	return nil
+}
+
+func (m *Manager) cleanupNoTrackChain() error {
+	exists, err := m.ipv4Client.ChainExists(tableRaw, chainNameRaw)
+	if err != nil {
+		return fmt.Errorf("check chain exists: %w", err)
+	}
+	if !exists {
+		return nil
+	}
+
+	jumpRule := []string{"-j", chainNameRaw}
+
+	if err := m.ipv4Client.DeleteIfExists(tableRaw, chainOUTPUT, jumpRule...); err != nil {
+		return fmt.Errorf("remove output jump rule: %w", err)
+	}
+
+	if err := m.ipv4Client.DeleteIfExists(tableRaw, chainPREROUTING, jumpRule...); err != nil {
+		return fmt.Errorf("remove prerouting jump rule: %w", err)
+	}
+
+	if err := m.ipv4Client.ClearAndDeleteChain(tableRaw, chainNameRaw); err != nil {
+		return fmt.Errorf("clear and delete chain: %w", err)
+	}
+
+	return nil
+}
+
 func getConntrackEstablished() []string {
 	return []string{"-m", "conntrack", "--ctstate", "RELATED,ESTABLISHED", "-j", "ACCEPT"}
 }

client/firewall/manager/firewall.go

@@ -168,6 +168,10 @@ type Manager interface {
 
 	// RemoveInboundDNAT removes inbound DNAT rule
 	RemoveInboundDNAT(localAddr netip.Addr, protocol Protocol, sourcePort, targetPort uint16) error
+
+	// SetupEBPFProxyNoTrack creates static notrack rules for eBPF proxy loopback traffic.
+	// This prevents conntrack from interfering with WireGuard proxy communication.
+	SetupEBPFProxyNoTrack(proxyPort, wgPort uint16) error
 }
 
 func GenKey(format string, pair RouterPair) string {

client/firewall/nftables/manager_linux.go

@@ -12,6 +12,7 @@ import (
 	"github.com/google/nftables/binaryutil"
 	"github.com/google/nftables/expr"
 	log "github.com/sirupsen/logrus"
+	"golang.org/x/sys/unix"
 
 	firewall "github.com/netbirdio/netbird/client/firewall/manager"
 	"github.com/netbirdio/netbird/client/iface/wgaddr"
@@ -48,8 +49,10 @@ type Manager struct {
 	rConn   *nftables.Conn
 	wgIface iFaceMapper
 
-	router     *router
-	aclManager *AclManager
+	router                 *router
+	aclManager             *AclManager
+	notrackOutputChain     *nftables.Chain
+	notrackPreroutingChain *nftables.Chain
 }
 
 // Create nftables firewall manager
@@ -91,6 +94,10 @@ func (m *Manager) Init(stateManager *statemanager.Manager) error {
 		return fmt.Errorf("acl manager init: %w", err)
 	}
 
+	if err := m.initNoTrackChains(workTable); err != nil {
+		return fmt.Errorf("init notrack chains: %w", err)
+	}
+
 	stateManager.RegisterState(&ShutdownState{})
 
 	// We only need to record minimal interface state for potential recreation.
@@ -288,7 +295,15 @@ func (m *Manager) Flush() error {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
-	return m.aclManager.Flush()
+	if err := m.aclManager.Flush(); err != nil {
+		return err
+	}
+
+	if err := m.refreshNoTrackChains(); err != nil {
+		log.Errorf("failed to refresh notrack chains: %v", err)
+	}
+
+	return nil
 }
 
 // AddDNATRule adds a DNAT rule
@@ -331,6 +346,176 @@ func (m *Manager) RemoveInboundDNAT(localAddr netip.Addr, protocol firewall.Prot
 	return m.router.RemoveInboundDNAT(localAddr, protocol, sourcePort, targetPort)
 }
 
+const (
+	chainNameRawOutput     = "netbird-raw-out"
+	chainNameRawPrerouting = "netbird-raw-pre"
+)
+
+// SetupEBPFProxyNoTrack creates notrack rules for eBPF proxy loopback traffic.
+// This prevents conntrack from tracking WireGuard proxy traffic on loopback, which
+// can interfere with MASQUERADE rules (e.g., from container runtimes like Podman/netavark).
+//
+// Traffic flows that need NOTRACK:
+//
+//  1. Egress: WireGuard -> fake endpoint (before eBPF rewrite)
+//     src=127.0.0.1:wgPort -> dst=127.0.0.1:fakePort
+//     Matched by: sport=wgPort
+//
+//  2. Egress: Proxy -> WireGuard (via raw socket)
+//     src=127.0.0.1:fakePort -> dst=127.0.0.1:wgPort
+//     Matched by: dport=wgPort
+//
+//  3. Ingress: Packets to WireGuard
+//     dst=127.0.0.1:wgPort
+//     Matched by: dport=wgPort
+//
+//  4. Ingress: Packets to proxy (after eBPF rewrite)
+//     dst=127.0.0.1:proxyPort
+//     Matched by: dport=proxyPort
+//
+// Rules are cleaned up when the firewall manager is closed.
+func (m *Manager) SetupEBPFProxyNoTrack(proxyPort, wgPort uint16) error {
+	m.mutex.Lock()
+	defer m.mutex.Unlock()
+
+	if m.notrackOutputChain == nil || m.notrackPreroutingChain == nil {
+		return fmt.Errorf("notrack chains not initialized")
+	}
+
+	proxyPortBytes := binaryutil.BigEndian.PutUint16(proxyPort)
+	wgPortBytes := binaryutil.BigEndian.PutUint16(wgPort)
+	loopback := []byte{127, 0, 0, 1}
+
+	// Egress rules: match outgoing loopback UDP packets
+	m.rConn.AddRule(&nftables.Rule{
+		Table: m.notrackOutputChain.Table,
+		Chain: m.notrackOutputChain,
+		Exprs: []expr.Any{
+			&expr.Meta{Key: expr.MetaKeyOIFNAME, Register: 1},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: ifname("lo")},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseNetworkHeader, Offset: 12, Len: 4}, // saddr
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: loopback},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseNetworkHeader, Offset: 16, Len: 4}, // daddr
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: loopback},
+			&expr.Meta{Key: expr.MetaKeyL4PROTO, Register: 1},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: []byte{unix.IPPROTO_UDP}},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseTransportHeader, Offset: 0, Len: 2},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: wgPortBytes}, // sport=wgPort
+			&expr.Counter{},
+			&expr.Notrack{},
+		},
+	})
+	m.rConn.AddRule(&nftables.Rule{
+		Table: m.notrackOutputChain.Table,
+		Chain: m.notrackOutputChain,
+		Exprs: []expr.Any{
+			&expr.Meta{Key: expr.MetaKeyOIFNAME, Register: 1},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: ifname("lo")},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseNetworkHeader, Offset: 12, Len: 4}, // saddr
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: loopback},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseNetworkHeader, Offset: 16, Len: 4}, // daddr
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: loopback},
+			&expr.Meta{Key: expr.MetaKeyL4PROTO, Register: 1},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: []byte{unix.IPPROTO_UDP}},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseTransportHeader, Offset: 2, Len: 2},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: wgPortBytes}, // dport=wgPort
+			&expr.Counter{},
+			&expr.Notrack{},
+		},
+	})
+
+	// Ingress rules: match incoming loopback UDP packets
+	m.rConn.AddRule(&nftables.Rule{
+		Table: m.notrackPreroutingChain.Table,
+		Chain: m.notrackPreroutingChain,
+		Exprs: []expr.Any{
+			&expr.Meta{Key: expr.MetaKeyIIFNAME, Register: 1},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: ifname("lo")},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseNetworkHeader, Offset: 12, Len: 4}, // saddr
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: loopback},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseNetworkHeader, Offset: 16, Len: 4}, // daddr
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: loopback},
+			&expr.Meta{Key: expr.MetaKeyL4PROTO, Register: 1},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: []byte{unix.IPPROTO_UDP}},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseTransportHeader, Offset: 2, Len: 2},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: wgPortBytes}, // dport=wgPort
+			&expr.Counter{},
+			&expr.Notrack{},
+		},
+	})
+	m.rConn.AddRule(&nftables.Rule{
+		Table: m.notrackPreroutingChain.Table,
+		Chain: m.notrackPreroutingChain,
+		Exprs: []expr.Any{
+			&expr.Meta{Key: expr.MetaKeyIIFNAME, Register: 1},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: ifname("lo")},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseNetworkHeader, Offset: 12, Len: 4}, // saddr
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: loopback},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseNetworkHeader, Offset: 16, Len: 4}, // daddr
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: loopback},
+			&expr.Meta{Key: expr.MetaKeyL4PROTO, Register: 1},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: []byte{unix.IPPROTO_UDP}},
+			&expr.Payload{DestRegister: 1, Base: expr.PayloadBaseTransportHeader, Offset: 2, Len: 2},
+			&expr.Cmp{Op: expr.CmpOpEq, Register: 1, Data: proxyPortBytes}, // dport=proxyPort
+			&expr.Counter{},
+			&expr.Notrack{},
+		},
+	})
+
+	if err := m.rConn.Flush(); err != nil {
+		return fmt.Errorf("flush notrack rules: %w", err)
+	}
+
+	log.Debugf("set up ebpf proxy notrack rules for ports %d,%d", proxyPort, wgPort)
+	return nil
+}
+
+func (m *Manager) initNoTrackChains(table *nftables.Table) error {
+	m.notrackOutputChain = m.rConn.AddChain(&nftables.Chain{
+		Name:     chainNameRawOutput,
+		Table:    table,
+		Type:     nftables.ChainTypeFilter,
+		Hooknum:  nftables.ChainHookOutput,
+		Priority: nftables.ChainPriorityRaw,
+	})
+
+	m.notrackPreroutingChain = m.rConn.AddChain(&nftables.Chain{
+		Name:     chainNameRawPrerouting,
+		Table:    table,
+		Type:     nftables.ChainTypeFilter,
+		Hooknum:  nftables.ChainHookPrerouting,
+		Priority: nftables.ChainPriorityRaw,
+	})
+
+	if err := m.rConn.Flush(); err != nil {
+		return fmt.Errorf("flush chain creation: %w", err)
+	}
+
+	return nil
+}
+
+func (m *Manager) refreshNoTrackChains() error {
+	chains, err := m.rConn.ListChainsOfTableFamily(nftables.TableFamilyIPv4)
+	if err != nil {
+		return fmt.Errorf("list chains: %w", err)
+	}
+
+	tableName := getTableName()
+	for _, c := range chains {
+		if c.Table.Name != tableName {
+			continue
+		}
+		switch c.Name {
+		case chainNameRawOutput:
+			m.notrackOutputChain = c
+		case chainNameRawPrerouting:
+			m.notrackPreroutingChain = c
+		}
+	}
+
+	return nil
+}
+
 func (m *Manager) createWorkTable() (*nftables.Table, error) {
 	tables, err := m.rConn.ListTablesOfFamily(nftables.TableFamilyIPv4)
 	if err != nil {

client/firewall/uspfilter/filter.go

@@ -570,6 +570,14 @@ func (m *Manager) SetLegacyManagement(isLegacy bool) error {
 // Flush doesn't need to be implemented for this manager
 func (m *Manager) Flush() error { return nil }
 
+// SetupEBPFProxyNoTrack creates notrack rules for eBPF proxy loopback traffic.
+func (m *Manager) SetupEBPFProxyNoTrack(proxyPort, wgPort uint16) error {
+	if m.nativeFirewall == nil {
+		return nil
+	}
+	return m.nativeFirewall.SetupEBPFProxyNoTrack(proxyPort, wgPort)
+}
+
 // UpdateSet updates the rule destinations associated with the given set
 // by merging the existing prefixes with the new ones, then deduplicating.
 func (m *Manager) UpdateSet(set firewall.Set, prefixes []netip.Prefix) error {

client/iface/configurer/usp.go

@@ -558,7 +558,7 @@ func parseStatus(deviceName, ipcStr string) (*Stats, error) {
 				continue
 			}
 
-			host, portStr, err := net.SplitHostPort(strings.Trim(val, "[]"))
+			host, portStr, err := net.SplitHostPort(val)
 			if err != nil {
 				log.Errorf("failed to parse endpoint: %v", err)
 				continue

client/iface/iface.go

@@ -50,6 +50,7 @@ func ValidateMTU(mtu uint16) error {
 
 type wgProxyFactory interface {
 	GetProxy() wgproxy.Proxy
+	GetProxyPort() uint16
 	Free() error
 }
 
@@ -80,6 +81,12 @@ func (w *WGIface) GetProxy() wgproxy.Proxy {
 	return w.wgProxyFactory.GetProxy()
 }
 
+// GetProxyPort returns the proxy port used by the WireGuard proxy.
+// Returns 0 if no proxy port is used (e.g., for userspace WireGuard).
+func (w *WGIface) GetProxyPort() uint16 {
+	return w.wgProxyFactory.GetProxyPort()
+}
+
 // GetBind returns the EndpointManager userspace bind mode.
 func (w *WGIface) GetBind() device.EndpointManager {
 	w.mu.Lock()

client/iface/wgproxy/bind/proxy.go

@@ -114,34 +114,21 @@ func (p *ProxyBind) Pause() {
 }
 
 func (p *ProxyBind) RedirectAs(endpoint *net.UDPAddr) {
+	ep, err := addrToEndpoint(endpoint)
+	if err != nil {
+		log.Errorf("failed to start package redirection: %v", err)
+		return
+	}
+
 	p.pausedCond.L.Lock()
 	p.paused = false
 
-	ep, err := addrToEndpoint(endpoint)
-	if err != nil {
-		log.Errorf("failed to convert endpoint address: %v", err)
-	} else {
-		p.wgCurrentUsed = ep
-	}
+	p.wgCurrentUsed = ep
 
 	p.pausedCond.Signal()
 	p.pausedCond.L.Unlock()
 }
 
-func addrToEndpoint(addr *net.UDPAddr) (*bind.Endpoint, error) {
-	if addr == nil {
-		return nil, errors.New("nil address")
-	}
-
-	ip, ok := netip.AddrFromSlice(addr.IP)
-	if !ok {
-		return nil, fmt.Errorf("convert %s to netip.Addr", addr)
-	}
-
-	addrPort := netip.AddrPortFrom(ip.Unmap(), uint16(addr.Port))
-	return &bind.Endpoint{AddrPort: addrPort}, nil
-}
-
 func (p *ProxyBind) CloseConn() error {
 	if p.cancel == nil {
 		return fmt.Errorf("proxy not started")
@@ -225,3 +212,16 @@ func fakeAddress(peerAddress *net.UDPAddr) (*netip.AddrPort, error) {
 	netipAddr := netip.AddrPortFrom(fakeIP, uint16(peerAddress.Port))
 	return &netipAddr, nil
 }
+
+func addrToEndpoint(addr *net.UDPAddr) (*bind.Endpoint, error) {
+	if addr == nil {
+		return nil, fmt.Errorf("invalid address")
+	}
+	ip, ok := netip.AddrFromSlice(addr.IP)
+	if !ok {
+		return nil, fmt.Errorf("convert %s to netip.Addr", addr)
+	}
+
+	addrPort := netip.AddrPortFrom(ip.Unmap(), uint16(addr.Port))
+	return &bind.Endpoint{AddrPort: addrPort}, nil
+}

client/iface/wgproxy/ebpf/proxy.go

@@ -8,8 +8,6 @@ import (
 	"net"
 	"sync"
 
-	"github.com/google/gopacket"
-	"github.com/google/gopacket/layers"
 	"github.com/hashicorp/go-multierror"
 	"github.com/pion/transport/v3"
 	log "github.com/sirupsen/logrus"
@@ -26,13 +24,10 @@ const (
 	loopbackAddr = "127.0.0.1"
 )
 
-var (
-	localHostNetIP = net.ParseIP("127.0.0.1")
-)
-
 // WGEBPFProxy definition for proxy with EBPF support
 type WGEBPFProxy struct {
 	localWGListenPort int
+	proxyPort         int
 	mtu               uint16
 
 	ebpfManager   ebpfMgr.Manager
@@ -40,7 +35,8 @@ type WGEBPFProxy struct {
 	turnConnMutex sync.Mutex
 
 	lastUsedPort uint16
-	rawConn      net.PacketConn
+	rawConnIPv4  net.PacketConn
+	rawConnIPv6  net.PacketConn
 	conn         transport.UDPConn
 
 	ctx       context.Context
@@ -62,23 +58,39 @@ func NewWGEBPFProxy(wgPort int, mtu uint16) *WGEBPFProxy {
 // Listen load ebpf program and listen the proxy
 func (p *WGEBPFProxy) Listen() error {
 	pl := portLookup{}
-	wgPorxyPort, err := pl.searchFreePort()
+	proxyPort, err := pl.searchFreePort()
+	if err != nil {
+		return err
+	}
+	p.proxyPort = proxyPort
+
+	// Prepare IPv4 raw socket (required)
+	p.rawConnIPv4, err = rawsocket.PrepareSenderRawSocketIPv4()
 	if err != nil {
 		return err
 	}
 
-	p.rawConn, err = rawsocket.PrepareSenderRawSocket()
+	// Prepare IPv6 raw socket (optional)
+	p.rawConnIPv6, err = rawsocket.PrepareSenderRawSocketIPv6()
 	if err != nil {
-		return err
+		log.Warnf("failed to prepare IPv6 raw socket, continuing with IPv4 only: %v", err)
 	}
 
-	err = p.ebpfManager.LoadWgProxy(wgPorxyPort, p.localWGListenPort)
+	err = p.ebpfManager.LoadWgProxy(proxyPort, p.localWGListenPort)
 	if err != nil {
+		if closeErr := p.rawConnIPv4.Close(); closeErr != nil {
+			log.Warnf("failed to close IPv4 raw socket: %v", closeErr)
+		}
+		if p.rawConnIPv6 != nil {
+			if closeErr := p.rawConnIPv6.Close(); closeErr != nil {
+				log.Warnf("failed to close IPv6 raw socket: %v", closeErr)
+			}
+		}
 		return err
 	}
 
 	addr := net.UDPAddr{
-		Port: wgPorxyPort,
+		Port: proxyPort,
 		IP:   net.ParseIP(loopbackAddr),
 	}
 
@@ -94,7 +106,7 @@ func (p *WGEBPFProxy) Listen() error {
 	p.conn = conn
 
 	go p.proxyToRemote()
-	log.Infof("local wg proxy listening on: %d", wgPorxyPort)
+	log.Infof("local wg proxy listening on: %d", proxyPort)
 	return nil
 }
 
@@ -135,12 +147,25 @@ func (p *WGEBPFProxy) Free() error {
 		result = multierror.Append(result, err)
 	}
 
-	if err := p.rawConn.Close(); err != nil {
-		result = multierror.Append(result, err)
+	if p.rawConnIPv4 != nil {
+		if err := p.rawConnIPv4.Close(); err != nil {
+			result = multierror.Append(result, err)
+		}
+	}
+
+	if p.rawConnIPv6 != nil {
+		if err := p.rawConnIPv6.Close(); err != nil {
+			result = multierror.Append(result, err)
+		}
 	}
 	return nberrors.FormatErrorOrNil(result)
 }
 
+// GetProxyPort returns the proxy listening port.
+func (p *WGEBPFProxy) GetProxyPort() uint16 {
+	return uint16(p.proxyPort)
+}
+
 // proxyToRemote read messages from local WireGuard interface and forward it to remote conn
 // From this go routine has only one instance.
 func (p *WGEBPFProxy) proxyToRemote() {
@@ -216,34 +241,3 @@ generatePort:
 	}
 	return p.lastUsedPort, nil
 }
-
-func (p *WGEBPFProxy) sendPkg(data []byte, endpointAddr *net.UDPAddr) error {
-	payload := gopacket.Payload(data)
-	ipH := &layers.IPv4{
-		DstIP:    localHostNetIP,
-		SrcIP:    endpointAddr.IP,
-		Version:  4,
-		TTL:      64,
-		Protocol: layers.IPProtocolUDP,
-	}
-	udpH := &layers.UDP{
-		SrcPort: layers.UDPPort(endpointAddr.Port),
-		DstPort: layers.UDPPort(p.localWGListenPort),
-	}
-
-	err := udpH.SetNetworkLayerForChecksum(ipH)
-	if err != nil {
-		return fmt.Errorf("set network layer for checksum: %w", err)
-	}
-
-	layerBuffer := gopacket.NewSerializeBuffer()
-
-	err = gopacket.SerializeLayers(layerBuffer, gopacket.SerializeOptions{ComputeChecksums: true, FixLengths: true}, ipH, udpH, payload)
-	if err != nil {
-		return fmt.Errorf("serialize layers: %w", err)
-	}
-	if _, err = p.rawConn.WriteTo(layerBuffer.Bytes(), &net.IPAddr{IP: localHostNetIP}); err != nil {
-		return fmt.Errorf("write to raw conn: %w", err)
-	}
-	return nil
-}

client/iface/wgproxy/ebpf/wrapper.go

@@ -10,12 +10,89 @@ import (
 	"net"
 	"sync"
 
+	"github.com/google/gopacket"
+	"github.com/google/gopacket/layers"
 	log "github.com/sirupsen/logrus"
 
 	"github.com/netbirdio/netbird/client/iface/bufsize"
 	"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
 )
 
+var (
+	errIPv6ConnNotAvailable = errors.New("IPv6 endpoint but rawConnIPv6 is not available")
+	errIPv4ConnNotAvailable = errors.New("IPv4 endpoint but rawConnIPv4 is not available")
+
+	localHostNetIPv4 = net.ParseIP("127.0.0.1")
+	localHostNetIPv6 = net.ParseIP("::1")
+
+	serializeOpts = gopacket.SerializeOptions{
+		ComputeChecksums: true,
+		FixLengths:       true,
+	}
+)
+
+// PacketHeaders holds pre-created headers and buffers for efficient packet sending
+type PacketHeaders struct {
+	ipH           gopacket.SerializableLayer
+	udpH          *layers.UDP
+	layerBuffer   gopacket.SerializeBuffer
+	localHostAddr net.IP
+	isIPv4        bool
+}
+
+func NewPacketHeaders(localWGListenPort int, endpoint *net.UDPAddr) (*PacketHeaders, error) {
+	var ipH gopacket.SerializableLayer
+	var networkLayer gopacket.NetworkLayer
+	var localHostAddr net.IP
+	var isIPv4 bool
+
+	// Check if source address is IPv4 or IPv6
+	if endpoint.IP.To4() != nil {
+		// IPv4 path
+		ipv4 := &layers.IPv4{
+			DstIP:    localHostNetIPv4,
+			SrcIP:    endpoint.IP,
+			Version:  4,
+			TTL:      64,
+			Protocol: layers.IPProtocolUDP,
+		}
+		ipH = ipv4
+		networkLayer = ipv4
+		localHostAddr = localHostNetIPv4
+		isIPv4 = true
+	} else {
+		// IPv6 path
+		ipv6 := &layers.IPv6{
+			DstIP:      localHostNetIPv6,
+			SrcIP:      endpoint.IP,
+			Version:    6,
+			HopLimit:   64,
+			NextHeader: layers.IPProtocolUDP,
+		}
+		ipH = ipv6
+		networkLayer = ipv6
+		localHostAddr = localHostNetIPv6
+		isIPv4 = false
+	}
+
+	udpH := &layers.UDP{
+		SrcPort: layers.UDPPort(endpoint.Port),
+		DstPort: layers.UDPPort(localWGListenPort),
+	}
+
+	if err := udpH.SetNetworkLayerForChecksum(networkLayer); err != nil {
+		return nil, fmt.Errorf("set network layer for checksum: %w", err)
+	}
+
+	return &PacketHeaders{
+		ipH:           ipH,
+		udpH:          udpH,
+		layerBuffer:   gopacket.NewSerializeBuffer(),
+		localHostAddr: localHostAddr,
+		isIPv4:        isIPv4,
+	}, nil
+}
+
 // ProxyWrapper help to keep the remoteConn instance for net.Conn.Close function call
 type ProxyWrapper struct {
 	wgeBPFProxy *WGEBPFProxy
@@ -24,8 +101,10 @@ type ProxyWrapper struct {
 	ctx        context.Context
 	cancel     context.CancelFunc
 
-	wgRelayedEndpointAddr     *net.UDPAddr
-	wgEndpointCurrentUsedAddr *net.UDPAddr
+	wgRelayedEndpointAddr *net.UDPAddr
+	headers               *PacketHeaders
+	headerCurrentUsed     *PacketHeaders
+	rawConn               net.PacketConn
 
 	paused     bool
 	pausedCond *sync.Cond
@@ -41,15 +120,32 @@ func NewProxyWrapper(proxy *WGEBPFProxy) *ProxyWrapper {
 		closeListener: listener.NewCloseListener(),
 	}
 }
-func (p *ProxyWrapper) AddTurnConn(ctx context.Context, endpoint *net.UDPAddr, remoteConn net.Conn) error {
+
+func (p *ProxyWrapper) AddTurnConn(ctx context.Context, _ *net.UDPAddr, remoteConn net.Conn) error {
 	addr, err := p.wgeBPFProxy.AddTurnConn(remoteConn)
 	if err != nil {
 		return fmt.Errorf("add turn conn: %w", err)
 	}
+
+	headers, err := NewPacketHeaders(p.wgeBPFProxy.localWGListenPort, addr)
+	if err != nil {
+		return fmt.Errorf("create packet sender: %w", err)
+	}
+
+	// Check if required raw connection is available
+	if !headers.isIPv4 && p.wgeBPFProxy.rawConnIPv6 == nil {
+		return errIPv6ConnNotAvailable
+	}
+	if headers.isIPv4 && p.wgeBPFProxy.rawConnIPv4 == nil {
+		return errIPv4ConnNotAvailable
+	}
+
 	p.remoteConn = remoteConn
 	p.ctx, p.cancel = context.WithCancel(ctx)
 	p.wgRelayedEndpointAddr = addr
-	return err
+	p.headers = headers
+	p.rawConn = p.selectRawConn(headers)
+	return nil
 }
 
 func (p *ProxyWrapper) EndpointAddr() *net.UDPAddr {
@@ -68,7 +164,8 @@ func (p *ProxyWrapper) Work() {
 	p.pausedCond.L.Lock()
 	p.paused = false
 
-	p.wgEndpointCurrentUsedAddr = p.wgRelayedEndpointAddr
+	p.headerCurrentUsed = p.headers
+	p.rawConn = p.selectRawConn(p.headerCurrentUsed)
 
 	if !p.isStarted {
 		p.isStarted = true
@@ -91,12 +188,32 @@ func (p *ProxyWrapper) Pause() {
 }
 
 func (p *ProxyWrapper) RedirectAs(endpoint *net.UDPAddr) {
+	if endpoint == nil || endpoint.IP == nil {
+		log.Errorf("failed to start package redirection, endpoint is nil")
+		return
+	}
+
+	header, err := NewPacketHeaders(p.wgeBPFProxy.localWGListenPort, endpoint)
+	if err != nil {
+		log.Errorf("failed to create packet headers: %s", err)
+		return
+	}
+
+	// Check if required raw connection is available
+	if !header.isIPv4 && p.wgeBPFProxy.rawConnIPv6 == nil {
+		log.Error(errIPv6ConnNotAvailable)
+		return
+	}
+	if header.isIPv4 && p.wgeBPFProxy.rawConnIPv4 == nil {
+		log.Error(errIPv4ConnNotAvailable)
+		return
+	}
+
 	p.pausedCond.L.Lock()
 	p.paused = false
 
-	if endpoint != nil && endpoint.IP != nil {
-		p.wgEndpointCurrentUsedAddr = endpoint
-	}
+	p.headerCurrentUsed = header
+	p.rawConn = p.selectRawConn(header)
 
 	p.pausedCond.Signal()
 	p.pausedCond.L.Unlock()
@@ -138,7 +255,7 @@ func (p *ProxyWrapper) proxyToLocal(ctx context.Context) {
 			p.pausedCond.Wait()
 		}
 
-		err = p.wgeBPFProxy.sendPkg(buf[:n], p.wgEndpointCurrentUsedAddr)
+		err = p.sendPkg(buf[:n], p.headerCurrentUsed)
 		p.pausedCond.L.Unlock()
 
 		if err != nil {
@@ -164,3 +281,29 @@ func (p *ProxyWrapper) readFromRemote(ctx context.Context, buf []byte) (int, err
 	}
 	return n, nil
 }
+
+func (p *ProxyWrapper) sendPkg(data []byte, header *PacketHeaders) error {
+	defer func() {
+		if err := header.layerBuffer.Clear(); err != nil {
+			log.Errorf("failed to clear layer buffer: %s", err)
+		}
+	}()
+
+	payload := gopacket.Payload(data)
+
+	if err := gopacket.SerializeLayers(header.layerBuffer, serializeOpts, header.ipH, header.udpH, payload); err != nil {
+		return fmt.Errorf("serialize layers: %w", err)
+	}
+
+	if _, err := p.rawConn.WriteTo(header.layerBuffer.Bytes(), &net.IPAddr{IP: header.localHostAddr}); err != nil {
+		return fmt.Errorf("write to raw conn: %w", err)
+	}
+	return nil
+}
+
+func (p *ProxyWrapper) selectRawConn(header *PacketHeaders) net.PacketConn {
+	if header.isIPv4 {
+		return p.wgeBPFProxy.rawConnIPv4
+	}
+	return p.wgeBPFProxy.rawConnIPv6
+}

client/iface/wgproxy/factory_kernel.go

@@ -54,6 +54,14 @@ func (w *KernelFactory) GetProxy() Proxy {
 	return ebpf.NewProxyWrapper(w.ebpfProxy)
 }
 
+// GetProxyPort returns the eBPF proxy port, or 0 if eBPF is not active.
+func (w *KernelFactory) GetProxyPort() uint16 {
+	if w.ebpfProxy == nil {
+		return 0
+	}
+	return w.ebpfProxy.GetProxyPort()
+}
+
 func (w *KernelFactory) Free() error {
 	if w.ebpfProxy == nil {
 		return nil

client/iface/wgproxy/factory_usp.go

@@ -24,6 +24,11 @@ func (w *USPFactory) GetProxy() Proxy {
 	return proxyBind.NewProxyBind(w.bind, w.mtu)
 }
 
+// GetProxyPort returns 0 as userspace WireGuard doesn't use a separate proxy port.
+func (w *USPFactory) GetProxyPort() uint16 {
+	return 0
+}
+
 func (w *USPFactory) Free() error {
 	return nil
 }

client/iface/wgproxy/rawsocket/rawsocket.go

@@ -8,43 +8,87 @@ import (
 	"os"
 	"syscall"
 
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/sys/unix"
+
 	nbnet "github.com/netbirdio/netbird/client/net"
 )
 
-func PrepareSenderRawSocket() (net.PacketConn, error) {
+// PrepareSenderRawSocketIPv4 creates and configures a raw socket for sending IPv4 packets
+func PrepareSenderRawSocketIPv4() (net.PacketConn, error) {
+	return prepareSenderRawSocket(syscall.AF_INET, true)
+}
+
+// PrepareSenderRawSocketIPv6 creates and configures a raw socket for sending IPv6 packets
+func PrepareSenderRawSocketIPv6() (net.PacketConn, error) {
+	return prepareSenderRawSocket(syscall.AF_INET6, false)
+}
+
+func prepareSenderRawSocket(family int, isIPv4 bool) (net.PacketConn, error) {
 	// Create a raw socket.
-	fd, err := syscall.Socket(syscall.AF_INET, syscall.SOCK_RAW, syscall.IPPROTO_RAW)
+	fd, err := syscall.Socket(family, syscall.SOCK_RAW, syscall.IPPROTO_RAW)
 	if err != nil {
 		return nil, fmt.Errorf("creating raw socket failed: %w", err)
 	}
 
-	// Set the IP_HDRINCL option on the socket to tell the kernel that headers are included in the packet.
-	err = syscall.SetsockoptInt(fd, syscall.IPPROTO_IP, syscall.IP_HDRINCL, 1)
-	if err != nil {
-		return nil, fmt.Errorf("setting IP_HDRINCL failed: %w", err)
+	// Set the header include option on the socket to tell the kernel that headers are included in the packet.
+	// For IPv4, we need to set IP_HDRINCL. For IPv6, we need to set IPV6_HDRINCL to accept application-provided IPv6 headers.
+	if isIPv4 {
+		err = syscall.SetsockoptInt(fd, syscall.IPPROTO_IP, unix.IP_HDRINCL, 1)
+		if err != nil {
+			if closeErr := syscall.Close(fd); closeErr != nil {
+				log.Warnf("failed to close raw socket fd: %v", closeErr)
+			}
+			return nil, fmt.Errorf("setting IP_HDRINCL failed: %w", err)
+		}
+	} else {
+		err = syscall.SetsockoptInt(fd, syscall.IPPROTO_IPV6, unix.IPV6_HDRINCL, 1)
+		if err != nil {
+			if closeErr := syscall.Close(fd); closeErr != nil {
+				log.Warnf("failed to close raw socket fd: %v", closeErr)
+			}
+			return nil, fmt.Errorf("setting IPV6_HDRINCL failed: %w", err)
+		}
 	}
 
 	// Bind the socket to the "lo" interface.
 	err = syscall.SetsockoptString(fd, syscall.SOL_SOCKET, syscall.SO_BINDTODEVICE, "lo")
 	if err != nil {
+		if closeErr := syscall.Close(fd); closeErr != nil {
+			log.Warnf("failed to close raw socket fd: %v", closeErr)
+		}
 		return nil, fmt.Errorf("binding to lo interface failed: %w", err)
 	}
 
 	// Set the fwmark on the socket.
 	err = nbnet.SetSocketOpt(fd)
 	if err != nil {
+		if closeErr := syscall.Close(fd); closeErr != nil {
+			log.Warnf("failed to close raw socket fd: %v", closeErr)
+		}
 		return nil, fmt.Errorf("setting fwmark failed: %w", err)
 	}
 
 	// Convert the file descriptor to a PacketConn.
 	file := os.NewFile(uintptr(fd), fmt.Sprintf("fd %d", fd))
 	if file == nil {
+		if closeErr := syscall.Close(fd); closeErr != nil {
+			log.Warnf("failed to close raw socket fd: %v", closeErr)
+		}
 		return nil, fmt.Errorf("converting fd to file failed")
 	}
 	packetConn, err := net.FilePacketConn(file)
 	if err != nil {
+		if closeErr := file.Close(); closeErr != nil {
+			log.Warnf("failed to close file: %v", closeErr)
+		}
 		return nil, fmt.Errorf("converting file to packet conn failed: %w", err)
 	}
 
+	// Close the original file to release the FD (net.FilePacketConn duplicates it)
+	if closeErr := file.Close(); closeErr != nil {
+		log.Warnf("failed to close file after creating packet conn: %v", closeErr)
+	}
+
 	return packetConn, nil
 }

client/iface/wgproxy/redirect_test.go

@@ -0,0 +1,353 @@
+//go:build linux && !android
+
+package wgproxy
+
+import (
+	"context"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/netbirdio/netbird/client/iface/wgproxy/ebpf"
+	"github.com/netbirdio/netbird/client/iface/wgproxy/udp"
+)
+
+// compareUDPAddr compares two UDP addresses, ignoring IPv6 zone IDs
+// IPv6 link-local addresses include zone IDs (e.g., fe80::1%lo) which we should ignore
+func compareUDPAddr(addr1, addr2 net.Addr) bool {
+	udpAddr1, ok1 := addr1.(*net.UDPAddr)
+	udpAddr2, ok2 := addr2.(*net.UDPAddr)
+
+	if !ok1 || !ok2 {
+		return addr1.String() == addr2.String()
+	}
+
+	// Compare IP and Port, ignoring zone
+	return udpAddr1.IP.Equal(udpAddr2.IP) && udpAddr1.Port == udpAddr2.Port
+}
+
+// TestRedirectAs_eBPF_IPv4 tests RedirectAs with eBPF proxy using IPv4 addresses
+func TestRedirectAs_eBPF_IPv4(t *testing.T) {
+	wgPort := 51850
+	ebpfProxy := ebpf.NewWGEBPFProxy(wgPort, 1280)
+	if err := ebpfProxy.Listen(); err != nil {
+		t.Fatalf("failed to initialize ebpf proxy: %v", err)
+	}
+	defer func() {
+		if err := ebpfProxy.Free(); err != nil {
+			t.Errorf("failed to free ebpf proxy: %v", err)
+		}
+	}()
+
+	proxy := ebpf.NewProxyWrapper(ebpfProxy)
+
+	// NetBird UDP address of the remote peer
+	nbAddr := &net.UDPAddr{
+		IP:   net.ParseIP("100.108.111.177"),
+		Port: 38746,
+	}
+
+	p2pEndpoint := &net.UDPAddr{
+		IP:   net.ParseIP("192.168.0.56"),
+		Port: 51820,
+	}
+
+	testRedirectAs(t, proxy, wgPort, nbAddr, p2pEndpoint)
+}
+
+// TestRedirectAs_eBPF_IPv6 tests RedirectAs with eBPF proxy using IPv6 addresses
+func TestRedirectAs_eBPF_IPv6(t *testing.T) {
+	wgPort := 51851
+	ebpfProxy := ebpf.NewWGEBPFProxy(wgPort, 1280)
+	if err := ebpfProxy.Listen(); err != nil {
+		t.Fatalf("failed to initialize ebpf proxy: %v", err)
+	}
+	defer func() {
+		if err := ebpfProxy.Free(); err != nil {
+			t.Errorf("failed to free ebpf proxy: %v", err)
+		}
+	}()
+
+	proxy := ebpf.NewProxyWrapper(ebpfProxy)
+
+	// NetBird UDP address of the remote peer
+	nbAddr := &net.UDPAddr{
+		IP:   net.ParseIP("100.108.111.177"),
+		Port: 38746,
+	}
+
+	p2pEndpoint := &net.UDPAddr{
+		IP:   net.ParseIP("fe80::56"),
+		Port: 51820,
+	}
+
+	testRedirectAs(t, proxy, wgPort, nbAddr, p2pEndpoint)
+}
+
+// TestRedirectAs_UDP_IPv4 tests RedirectAs with UDP proxy using IPv4 addresses
+func TestRedirectAs_UDP_IPv4(t *testing.T) {
+	wgPort := 51852
+	proxy := udp.NewWGUDPProxy(wgPort, 1280)
+
+	// NetBird UDP address of the remote peer
+	nbAddr := &net.UDPAddr{
+		IP:   net.ParseIP("100.108.111.177"),
+		Port: 38746,
+	}
+
+	p2pEndpoint := &net.UDPAddr{
+		IP:   net.ParseIP("192.168.0.56"),
+		Port: 51820,
+	}
+
+	testRedirectAs(t, proxy, wgPort, nbAddr, p2pEndpoint)
+}
+
+// TestRedirectAs_UDP_IPv6 tests RedirectAs with UDP proxy using IPv6 addresses
+func TestRedirectAs_UDP_IPv6(t *testing.T) {
+	wgPort := 51853
+	proxy := udp.NewWGUDPProxy(wgPort, 1280)
+
+	// NetBird UDP address of the remote peer
+	nbAddr := &net.UDPAddr{
+		IP:   net.ParseIP("100.108.111.177"),
+		Port: 38746,
+	}
+
+	p2pEndpoint := &net.UDPAddr{
+		IP:   net.ParseIP("fe80::56"),
+		Port: 51820,
+	}
+
+	testRedirectAs(t, proxy, wgPort, nbAddr, p2pEndpoint)
+}
+
+// testRedirectAs is a helper function that tests the RedirectAs functionality
+// It verifies that:
+// 1. Initial traffic from relay connection works
+// 2. After calling RedirectAs, packets appear to come from the p2p endpoint
+// 3. Multiple packets are correctly redirected with the new source address
+func testRedirectAs(t *testing.T, proxy Proxy, wgPort int, nbAddr, p2pEndpoint *net.UDPAddr) {
+	t.Helper()
+
+	ctx := context.Background()
+
+	// Create WireGuard listeners on both IPv4 and IPv6 to support both P2P connection types
+	// In reality, WireGuard binds to a port and receives from both IPv4 and IPv6
+	wgListener4, err := net.ListenUDP("udp4", &net.UDPAddr{
+		IP:   net.ParseIP("127.0.0.1"),
+		Port: wgPort,
+	})
+	if err != nil {
+		t.Fatalf("failed to create IPv4 WireGuard listener: %v", err)
+	}
+	defer wgListener4.Close()
+
+	wgListener6, err := net.ListenUDP("udp6", &net.UDPAddr{
+		IP:   net.ParseIP("::1"),
+		Port: wgPort,
+	})
+	if err != nil {
+		t.Fatalf("failed to create IPv6 WireGuard listener: %v", err)
+	}
+	defer wgListener6.Close()
+
+	// Determine which listener to use based on the NetBird address IP version
+	// (this is where initial traffic will come from before RedirectAs is called)
+	var wgListener *net.UDPConn
+	if p2pEndpoint.IP.To4() == nil {
+		wgListener = wgListener6
+	} else {
+		wgListener = wgListener4
+	}
+
+	// Create relay server and connection
+	relayServer, err := net.ListenUDP("udp", &net.UDPAddr{
+		IP:   net.ParseIP("127.0.0.1"),
+		Port: 0, // Random port
+	})
+	if err != nil {
+		t.Fatalf("failed to create relay server: %v", err)
+	}
+	defer relayServer.Close()
+
+	relayConn, err := net.Dial("udp", relayServer.LocalAddr().String())
+	if err != nil {
+		t.Fatalf("failed to create relay connection: %v", err)
+	}
+	defer relayConn.Close()
+
+	// Add TURN connection to proxy
+	if err := proxy.AddTurnConn(ctx, nbAddr, relayConn); err != nil {
+		t.Fatalf("failed to add TURN connection: %v", err)
+	}
+	defer func() {
+		if err := proxy.CloseConn(); err != nil {
+			t.Errorf("failed to close proxy connection: %v", err)
+		}
+	}()
+
+	// Start the proxy
+	proxy.Work()
+
+	// Phase 1: Test initial relay traffic
+	msgFromRelay := []byte("hello from relay")
+	if _, err := relayServer.WriteTo(msgFromRelay, relayConn.LocalAddr()); err != nil {
+		t.Fatalf("failed to write to relay server: %v", err)
+	}
+
+	// Set read deadline to avoid hanging
+	if err := wgListener4.SetReadDeadline(time.Now().Add(2 * time.Second)); err != nil {
+		t.Fatalf("failed to set read deadline: %v", err)
+	}
+
+	buf := make([]byte, 1024)
+	n, _, err := wgListener4.ReadFrom(buf)
+	if err != nil {
+		t.Fatalf("failed to read from WireGuard listener: %v", err)
+	}
+
+	if n != len(msgFromRelay) {
+		t.Errorf("expected %d bytes, got %d", len(msgFromRelay), n)
+	}
+
+	if string(buf[:n]) != string(msgFromRelay) {
+		t.Errorf("expected message %q, got %q", msgFromRelay, buf[:n])
+	}
+
+	// Phase 2: Redirect to p2p endpoint
+	proxy.RedirectAs(p2pEndpoint)
+
+	// Give the proxy a moment to process the redirect
+	time.Sleep(100 * time.Millisecond)
+
+	// Phase 3: Test redirected traffic
+	redirectedMessages := [][]byte{
+		[]byte("redirected message 1"),
+		[]byte("redirected message 2"),
+		[]byte("redirected message 3"),
+	}
+
+	for i, msg := range redirectedMessages {
+		if _, err := relayServer.WriteTo(msg, relayConn.LocalAddr()); err != nil {
+			t.Fatalf("failed to write redirected message %d: %v", i+1, err)
+		}
+
+		if err := wgListener.SetReadDeadline(time.Now().Add(2 * time.Second)); err != nil {
+			t.Fatalf("failed to set read deadline: %v", err)
+		}
+
+		n, srcAddr, err := wgListener.ReadFrom(buf)
+		if err != nil {
+			t.Fatalf("failed to read redirected message %d: %v", i+1, err)
+		}
+
+		// Verify message content
+		if string(buf[:n]) != string(msg) {
+			t.Errorf("message %d: expected %q, got %q", i+1, msg, buf[:n])
+		}
+
+		// Verify source address matches p2p endpoint (this is the key test)
+		// Use compareUDPAddr to ignore IPv6 zone IDs
+		if !compareUDPAddr(srcAddr, p2pEndpoint) {
+			t.Errorf("message %d: expected source address %s, got %s",
+				i+1, p2pEndpoint.String(), srcAddr.String())
+		}
+	}
+}
+
+// TestRedirectAs_Multiple_Switches tests switching between multiple endpoints
+func TestRedirectAs_Multiple_Switches(t *testing.T) {
+	wgPort := 51856
+	ebpfProxy := ebpf.NewWGEBPFProxy(wgPort, 1280)
+	if err := ebpfProxy.Listen(); err != nil {
+		t.Fatalf("failed to initialize ebpf proxy: %v", err)
+	}
+	defer func() {
+		if err := ebpfProxy.Free(); err != nil {
+			t.Errorf("failed to free ebpf proxy: %v", err)
+		}
+	}()
+
+	proxy := ebpf.NewProxyWrapper(ebpfProxy)
+
+	ctx := context.Background()
+
+	// Create WireGuard listener
+	wgListener, err := net.ListenUDP("udp4", &net.UDPAddr{
+		IP:   net.ParseIP("127.0.0.1"),
+		Port: wgPort,
+	})
+	if err != nil {
+		t.Fatalf("failed to create WireGuard listener: %v", err)
+	}
+	defer wgListener.Close()
+
+	// Create relay server and connection
+	relayServer, err := net.ListenUDP("udp", &net.UDPAddr{
+		IP:   net.ParseIP("127.0.0.1"),
+		Port: 0,
+	})
+	if err != nil {
+		t.Fatalf("failed to create relay server: %v", err)
+	}
+	defer relayServer.Close()
+
+	relayConn, err := net.Dial("udp", relayServer.LocalAddr().String())
+	if err != nil {
+		t.Fatalf("failed to create relay connection: %v", err)
+	}
+	defer relayConn.Close()
+
+	nbAddr := &net.UDPAddr{
+		IP:   net.ParseIP("100.108.111.177"),
+		Port: 38746,
+	}
+
+	if err := proxy.AddTurnConn(ctx, nbAddr, relayConn); err != nil {
+		t.Fatalf("failed to add TURN connection: %v", err)
+	}
+	defer func() {
+		if err := proxy.CloseConn(); err != nil {
+			t.Errorf("failed to close proxy connection: %v", err)
+		}
+	}()
+
+	proxy.Work()
+
+	// Test switching between multiple endpoints - using addresses in local subnet
+	endpoints := []*net.UDPAddr{
+		{IP: net.ParseIP("192.168.0.100"), Port: 51820},
+		{IP: net.ParseIP("192.168.0.101"), Port: 51821},
+		{IP: net.ParseIP("192.168.0.102"), Port: 51822},
+	}
+
+	for i, endpoint := range endpoints {
+		proxy.RedirectAs(endpoint)
+		time.Sleep(100 * time.Millisecond)
+
+		msg := []byte("test message")
+		if _, err := relayServer.WriteTo(msg, relayConn.LocalAddr()); err != nil {
+			t.Fatalf("failed to write message for endpoint %d: %v", i, err)
+		}
+
+		buf := make([]byte, 1024)
+		if err := wgListener.SetReadDeadline(time.Now().Add(2 * time.Second)); err != nil {
+			t.Fatalf("failed to set read deadline: %v", err)
+		}
+
+		n, srcAddr, err := wgListener.ReadFrom(buf)
+		if err != nil {
+			t.Fatalf("failed to read message for endpoint %d: %v", i, err)
+		}
+
+		if string(buf[:n]) != string(msg) {
+			t.Errorf("endpoint %d: expected message %q, got %q", i, msg, buf[:n])
+		}
+
+		if !compareUDPAddr(srcAddr, endpoint) {
+			t.Errorf("endpoint %d: expected source %s, got %s",
+				i, endpoint.String(), srcAddr.String())
+		}
+	}
+}

client/iface/wgproxy/udp/proxy.go

@@ -56,7 +56,7 @@ func NewWGUDPProxy(wgPort int, mtu uint16) *WGUDPProxy {
 // the connection is complete, an error is returned. Once successfully
 // connected, any expiration of the context will not affect the
 // connection.
-func (p *WGUDPProxy) AddTurnConn(ctx context.Context, endpoint *net.UDPAddr, remoteConn net.Conn) error {
+func (p *WGUDPProxy) AddTurnConn(ctx context.Context, _ *net.UDPAddr, remoteConn net.Conn) error {
 	dialer := net.Dialer{}
 	localConn, err := dialer.DialContext(ctx, "udp", fmt.Sprintf(":%d", p.localWGListenPort))
 	if err != nil {

client/iface/wgproxy/udp/rawsocket.go

@@ -19,37 +19,56 @@ var (
 		FixLengths:       true,
 	}
 
-	localHostNetIPAddr = &net.IPAddr{
+	localHostNetIPAddrV4 = &net.IPAddr{
 		IP: net.ParseIP("127.0.0.1"),
 	}
+	localHostNetIPAddrV6 = &net.IPAddr{
+		IP: net.ParseIP("::1"),
+	}
 )
 
 type SrcFaker struct {
 	srcAddr *net.UDPAddr
 
-	rawSocket   net.PacketConn
-	ipH         gopacket.SerializableLayer
-	udpH        gopacket.SerializableLayer
-	layerBuffer gopacket.SerializeBuffer
+	rawSocket     net.PacketConn
+	ipH           gopacket.SerializableLayer
+	udpH          gopacket.SerializableLayer
+	layerBuffer   gopacket.SerializeBuffer
+	localHostAddr *net.IPAddr
 }
 
 func NewSrcFaker(dstPort int, srcAddr *net.UDPAddr) (*SrcFaker, error) {
-	rawSocket, err := rawsocket.PrepareSenderRawSocket()
+	// Create only the raw socket for the address family we need
+	var rawSocket net.PacketConn
+	var err error
+	var localHostAddr *net.IPAddr
+
+	if srcAddr.IP.To4() != nil {
+		rawSocket, err = rawsocket.PrepareSenderRawSocketIPv4()
+		localHostAddr = localHostNetIPAddrV4
+	} else {
+		rawSocket, err = rawsocket.PrepareSenderRawSocketIPv6()
+		localHostAddr = localHostNetIPAddrV6
+	}
 	if err != nil {
 		return nil, err
 	}
 
 	ipH, udpH, err := prepareHeaders(dstPort, srcAddr)
 	if err != nil {
+		if closeErr := rawSocket.Close(); closeErr != nil {
+			log.Warnf("failed to close raw socket: %v", closeErr)
+		}
 		return nil, err
 	}
 
 	f := &SrcFaker{
-		srcAddr:     srcAddr,
-		rawSocket:   rawSocket,
-		ipH:         ipH,
-		udpH:        udpH,
-		layerBuffer: gopacket.NewSerializeBuffer(),
+		srcAddr:       srcAddr,
+		rawSocket:     rawSocket,
+		ipH:           ipH,
+		udpH:          udpH,
+		layerBuffer:   gopacket.NewSerializeBuffer(),
+		localHostAddr: localHostAddr,
 	}
 
 	return f, nil
@@ -72,7 +91,7 @@ func (f *SrcFaker) SendPkg(data []byte) (int, error) {
 	if err != nil {
 		return 0, fmt.Errorf("serialize layers: %w", err)
 	}
-	n, err := f.rawSocket.WriteTo(f.layerBuffer.Bytes(), localHostNetIPAddr)
+	n, err := f.rawSocket.WriteTo(f.layerBuffer.Bytes(), f.localHostAddr)
 	if err != nil {
 		return 0, fmt.Errorf("write to raw conn: %w", err)
 	}
@@ -80,19 +99,40 @@ func (f *SrcFaker) SendPkg(data []byte) (int, error) {
 }
 
 func prepareHeaders(dstPort int, srcAddr *net.UDPAddr) (gopacket.SerializableLayer, gopacket.SerializableLayer, error) {
-	ipH := &layers.IPv4{
-		DstIP:    net.ParseIP("127.0.0.1"),
-		SrcIP:    srcAddr.IP,
-		Version:  4,
-		TTL:      64,
-		Protocol: layers.IPProtocolUDP,
+	var ipH gopacket.SerializableLayer
+	var networkLayer gopacket.NetworkLayer
+
+	// Check if source IP is IPv4 or IPv6
+	if srcAddr.IP.To4() != nil {
+		// IPv4
+		ipv4 := &layers.IPv4{
+			DstIP:    localHostNetIPAddrV4.IP,
+			SrcIP:    srcAddr.IP,
+			Version:  4,
+			TTL:      64,
+			Protocol: layers.IPProtocolUDP,
+		}
+		ipH = ipv4
+		networkLayer = ipv4
+	} else {
+		// IPv6
+		ipv6 := &layers.IPv6{
+			DstIP:      localHostNetIPAddrV6.IP,
+			SrcIP:      srcAddr.IP,
+			Version:    6,
+			HopLimit:   64,
+			NextHeader: layers.IPProtocolUDP,
+		}
+		ipH = ipv6
+		networkLayer = ipv6
 	}
+
 	udpH := &layers.UDP{
 		SrcPort: layers.UDPPort(srcAddr.Port),
 		DstPort: layers.UDPPort(dstPort), // dst is the localhost WireGuard port
 	}
 
-	err := udpH.SetNetworkLayerForChecksum(ipH)
+	err := udpH.SetNetworkLayerForChecksum(networkLayer)
 	if err != nil {
 		return nil, nil, fmt.Errorf("set network layer for checksum: %w", err)
 	}

client/internal/auth/auth.go

@@ -0,0 +1,499 @@
+package auth
+
+import (
+	"context"
+	"net/url"
+	"sync"
+	"time"
+
+	"github.com/cenkalti/backoff/v4"
+	"github.com/google/uuid"
+	log "github.com/sirupsen/logrus"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
+	"github.com/netbirdio/netbird/client/internal/profilemanager"
+	"github.com/netbirdio/netbird/client/ssh"
+	"github.com/netbirdio/netbird/client/system"
+	mgm "github.com/netbirdio/netbird/shared/management/client"
+	"github.com/netbirdio/netbird/shared/management/client/common"
+	mgmProto "github.com/netbirdio/netbird/shared/management/proto"
+)
+
+// Auth manages authentication operations with the management server
+// It maintains a long-lived connection and automatically handles reconnection with backoff
+type Auth struct {
+	mutex         sync.RWMutex
+	client        *mgm.GrpcClient
+	config        *profilemanager.Config
+	privateKey    wgtypes.Key
+	mgmURL        *url.URL
+	mgmTLSEnabled bool
+}
+
+// NewAuth creates a new Auth instance that manages authentication flows
+// It establishes a connection to the management server that will be reused for all operations
+// The connection is automatically recreated with backoff if it becomes disconnected
+func NewAuth(ctx context.Context, privateKey string, mgmURL *url.URL, config *profilemanager.Config) (*Auth, error) {
+	// Validate WireGuard private key
+	myPrivateKey, err := wgtypes.ParseKey(privateKey)
+	if err != nil {
+		return nil, err
+	}
+
+	// Determine TLS setting based on URL scheme
+	mgmTLSEnabled := mgmURL.Scheme == "https"
+
+	log.Debugf("connecting to Management Service %s", mgmURL.String())
+	mgmClient, err := mgm.NewClient(ctx, mgmURL.Host, myPrivateKey, mgmTLSEnabled)
+	if err != nil {
+		log.Errorf("failed connecting to Management Service %s: %v", mgmURL.String(), err)
+		return nil, err
+	}
+
+	log.Debugf("connected to the Management service %s", mgmURL.String())
+
+	return &Auth{
+		client:        mgmClient,
+		config:        config,
+		privateKey:    myPrivateKey,
+		mgmURL:        mgmURL,
+		mgmTLSEnabled: mgmTLSEnabled,
+	}, nil
+}
+
+// Close closes the management client connection
+func (a *Auth) Close() error {
+	a.mutex.Lock()
+	defer a.mutex.Unlock()
+
+	if a.client == nil {
+		return nil
+	}
+	return a.client.Close()
+}
+
+// IsSSOSupported checks if the management server supports SSO by attempting to retrieve auth flow configurations.
+// Returns true if either PKCE or Device authorization flow is supported, false otherwise.
+// This function encapsulates the SSO detection logic to avoid exposing gRPC error codes to upper layers.
+// Automatically retries with backoff and reconnection on connection errors.
+func (a *Auth) IsSSOSupported(ctx context.Context) (bool, error) {
+	var supportsSSO bool
+
+	err := a.withRetry(ctx, func(client *mgm.GrpcClient) error {
+		// Try PKCE flow first
+		_, err := a.getPKCEFlow(client)
+		if err == nil {
+			supportsSSO = true
+			return nil
+		}
+
+		// Check if PKCE is not supported
+		if s, ok := status.FromError(err); ok && (s.Code() == codes.NotFound || s.Code() == codes.Unimplemented) {
+			// PKCE not supported, try Device flow
+			_, err = a.getDeviceFlow(client)
+			if err == nil {
+				supportsSSO = true
+				return nil
+			}
+
+			// Check if Device flow is also not supported
+			if s, ok := status.FromError(err); ok && (s.Code() == codes.NotFound || s.Code() == codes.Unimplemented) {
+				// Neither PKCE nor Device flow is supported
+				supportsSSO = false
+				return nil
+			}
+
+			// Device flow check returned an error other than NotFound/Unimplemented
+			return err
+		}
+
+		// PKCE flow check returned an error other than NotFound/Unimplemented
+		return err
+	})
+
+	return supportsSSO, err
+}
+
+// GetOAuthFlow returns an OAuth flow (PKCE or Device) using the existing management connection
+// This avoids creating a new connection to the management server
+func (a *Auth) GetOAuthFlow(ctx context.Context, forceDeviceAuth bool) (OAuthFlow, error) {
+	var flow OAuthFlow
+	var err error
+
+	err = a.withRetry(ctx, func(client *mgm.GrpcClient) error {
+		if forceDeviceAuth {
+			flow, err = a.getDeviceFlow(client)
+			return err
+		}
+
+		// Try PKCE flow first
+		flow, err = a.getPKCEFlow(client)
+		if err != nil {
+			// If PKCE not supported, try Device flow
+			if s, ok := status.FromError(err); ok && (s.Code() == codes.NotFound || s.Code() == codes.Unimplemented) {
+				flow, err = a.getDeviceFlow(client)
+				return err
+			}
+			return err
+		}
+		return nil
+	})
+
+	return flow, err
+}
+
+// IsLoginRequired checks if login is required by attempting to authenticate with the server
+// Automatically retries with backoff and reconnection on connection errors.
+func (a *Auth) IsLoginRequired(ctx context.Context) (bool, error) {
+	pubSSHKey, err := ssh.GeneratePublicKey([]byte(a.config.SSHKey))
+	if err != nil {
+		return false, err
+	}
+
+	var needsLogin bool
+
+	err = a.withRetry(ctx, func(client *mgm.GrpcClient) error {
+		_, _, err := a.doMgmLogin(client, ctx, pubSSHKey)
+		if isLoginNeeded(err) {
+			needsLogin = true
+			return nil
+		}
+		needsLogin = false
+		return err
+	})
+
+	return needsLogin, err
+}
+
+// Login attempts to log in or register the client with the management server
+// Returns error and a boolean indicating if it's an authentication error (permission denied) that should stop retries.
+// Automatically retries with backoff and reconnection on connection errors.
+func (a *Auth) Login(ctx context.Context, setupKey string, jwtToken string) (error, bool) {
+	pubSSHKey, err := ssh.GeneratePublicKey([]byte(a.config.SSHKey))
+	if err != nil {
+		return err, false
+	}
+
+	var isAuthError bool
+
+	err = a.withRetry(ctx, func(client *mgm.GrpcClient) error {
+		serverKey, _, err := a.doMgmLogin(client, ctx, pubSSHKey)
+		if serverKey != nil && isRegistrationNeeded(err) {
+			log.Debugf("peer registration required")
+			_, err = a.registerPeer(client, ctx, setupKey, jwtToken, pubSSHKey)
+			if err != nil {
+				isAuthError = isPermissionDenied(err)
+				return err
+			}
+		} else if err != nil {
+			isAuthError = isPermissionDenied(err)
+			return err
+		}
+
+		isAuthError = false
+		return nil
+	})
+
+	return err, isAuthError
+}
+
+// getPKCEFlow retrieves PKCE authorization flow configuration and creates a flow instance
+func (a *Auth) getPKCEFlow(client *mgm.GrpcClient) (*PKCEAuthorizationFlow, error) {
+	serverKey, err := client.GetServerPublicKey()
+	if err != nil {
+		log.Errorf("failed while getting Management Service public key: %v", err)
+		return nil, err
+	}
+
+	protoFlow, err := client.GetPKCEAuthorizationFlow(*serverKey)
+	if err != nil {
+		if s, ok := status.FromError(err); ok && s.Code() == codes.NotFound {
+			log.Warnf("server couldn't find pkce flow, contact admin: %v", err)
+			return nil, err
+		}
+		log.Errorf("failed to retrieve pkce flow: %v", err)
+		return nil, err
+	}
+
+	protoConfig := protoFlow.GetProviderConfig()
+	config := &PKCEAuthProviderConfig{
+		Audience:              protoConfig.GetAudience(),
+		ClientID:              protoConfig.GetClientID(),
+		ClientSecret:          protoConfig.GetClientSecret(),
+		TokenEndpoint:         protoConfig.GetTokenEndpoint(),
+		AuthorizationEndpoint: protoConfig.GetAuthorizationEndpoint(),
+		Scope:                 protoConfig.GetScope(),
+		RedirectURLs:          protoConfig.GetRedirectURLs(),
+		UseIDToken:            protoConfig.GetUseIDToken(),
+		ClientCertPair:        a.config.ClientCertKeyPair,
+		DisablePromptLogin:    protoConfig.GetDisablePromptLogin(),
+		LoginFlag:             common.LoginFlag(protoConfig.GetLoginFlag()),
+	}
+
+	if err := validatePKCEConfig(config); err != nil {
+		return nil, err
+	}
+
+	flow, err := NewPKCEAuthorizationFlow(*config)
+	if err != nil {
+		return nil, err
+	}
+
+	return flow, nil
+}
+
+// getDeviceFlow retrieves device authorization flow configuration and creates a flow instance
+func (a *Auth) getDeviceFlow(client *mgm.GrpcClient) (*DeviceAuthorizationFlow, error) {
+	serverKey, err := client.GetServerPublicKey()
+	if err != nil {
+		log.Errorf("failed while getting Management Service public key: %v", err)
+		return nil, err
+	}
+
+	protoFlow, err := client.GetDeviceAuthorizationFlow(*serverKey)
+	if err != nil {
+		if s, ok := status.FromError(err); ok && s.Code() == codes.NotFound {
+			log.Warnf("server couldn't find device flow, contact admin: %v", err)
+			return nil, err
+		}
+		log.Errorf("failed to retrieve device flow: %v", err)
+		return nil, err
+	}
+
+	protoConfig := protoFlow.GetProviderConfig()
+	config := &DeviceAuthProviderConfig{
+		Audience:           protoConfig.GetAudience(),
+		ClientID:           protoConfig.GetClientID(),
+		ClientSecret:       protoConfig.GetClientSecret(),
+		Domain:             protoConfig.Domain,
+		TokenEndpoint:      protoConfig.GetTokenEndpoint(),
+		DeviceAuthEndpoint: protoConfig.GetDeviceAuthEndpoint(),
+		Scope:              protoConfig.GetScope(),
+		UseIDToken:         protoConfig.GetUseIDToken(),
+	}
+
+	// Keep compatibility with older management versions
+	if config.Scope == "" {
+		config.Scope = "openid"
+	}
+
+	if err := validateDeviceAuthConfig(config); err != nil {
+		return nil, err
+	}
+
+	flow, err := NewDeviceAuthorizationFlow(*config)
+	if err != nil {
+		return nil, err
+	}
+
+	return flow, nil
+}
+
+// doMgmLogin performs the actual login operation with the management service
+func (a *Auth) doMgmLogin(client *mgm.GrpcClient, ctx context.Context, pubSSHKey []byte) (*wgtypes.Key, *mgmProto.LoginResponse, error) {
+	serverKey, err := client.GetServerPublicKey()
+	if err != nil {
+		log.Errorf("failed while getting Management Service public key: %v", err)
+		return nil, nil, err
+	}
+
+	sysInfo := system.GetInfo(ctx)
+	a.setSystemInfoFlags(sysInfo)
+	loginResp, err := client.Login(*serverKey, sysInfo, pubSSHKey, a.config.DNSLabels)
+	return serverKey, loginResp, err
+}
+
+// registerPeer checks whether setupKey was provided via cmd line and if not then it prompts user to enter a key.
+// Otherwise tries to register with the provided setupKey via command line.
+func (a *Auth) registerPeer(client *mgm.GrpcClient, ctx context.Context, setupKey string, jwtToken string, pubSSHKey []byte) (*mgmProto.LoginResponse, error) {
+	serverPublicKey, err := client.GetServerPublicKey()
+	if err != nil {
+		log.Errorf("failed while getting Management Service public key: %v", err)
+		return nil, err
+	}
+
+	validSetupKey, err := uuid.Parse(setupKey)
+	if err != nil && jwtToken == "" {
+		return nil, status.Errorf(codes.InvalidArgument, "invalid setup-key or no sso information provided, err: %v", err)
+	}
+
+	log.Debugf("sending peer registration request to Management Service")
+	info := system.GetInfo(ctx)
+	a.setSystemInfoFlags(info)
+	loginResp, err := client.Register(*serverPublicKey, validSetupKey.String(), jwtToken, info, pubSSHKey, a.config.DNSLabels)
+	if err != nil {
+		log.Errorf("failed registering peer %v", err)
+		return nil, err
+	}
+
+	log.Infof("peer has been successfully registered on Management Service")
+
+	return loginResp, nil
+}
+
+// setSystemInfoFlags sets all configuration flags on the provided system info
+func (a *Auth) setSystemInfoFlags(info *system.Info) {
+	info.SetFlags(
+		a.config.RosenpassEnabled,
+		a.config.RosenpassPermissive,
+		a.config.ServerSSHAllowed,
+		a.config.DisableClientRoutes,
+		a.config.DisableServerRoutes,
+		a.config.DisableDNS,
+		a.config.DisableFirewall,
+		a.config.BlockLANAccess,
+		a.config.BlockInbound,
+		a.config.LazyConnectionEnabled,
+		a.config.EnableSSHRoot,
+		a.config.EnableSSHSFTP,
+		a.config.EnableSSHLocalPortForwarding,
+		a.config.EnableSSHRemotePortForwarding,
+		a.config.DisableSSHAuth,
+	)
+}
+
+// reconnect closes the current connection and creates a new one
+// It checks if the brokenClient is still the current client before reconnecting
+// to avoid multiple threads reconnecting unnecessarily
+func (a *Auth) reconnect(ctx context.Context, brokenClient *mgm.GrpcClient) error {
+	a.mutex.Lock()
+	defer a.mutex.Unlock()
+
+	// Double-check: if client has already been replaced by another thread, skip reconnection
+	if a.client != brokenClient {
+		log.Debugf("client already reconnected by another thread, skipping")
+		return nil
+	}
+
+	// Create new connection FIRST, before closing the old one
+	// This ensures a.client is never nil, preventing panics in other threads
+	log.Debugf("reconnecting to Management Service %s", a.mgmURL.String())
+	mgmClient, err := mgm.NewClient(ctx, a.mgmURL.Host, a.privateKey, a.mgmTLSEnabled)
+	if err != nil {
+		log.Errorf("failed reconnecting to Management Service %s: %v", a.mgmURL.String(), err)
+		// Keep the old client if reconnection fails
+		return err
+	}
+
+	// Close old connection AFTER new one is successfully created
+	oldClient := a.client
+	a.client = mgmClient
+
+	if oldClient != nil {
+		if err := oldClient.Close(); err != nil {
+			log.Debugf("error closing old connection: %v", err)
+		}
+	}
+
+	log.Debugf("successfully reconnected to Management service %s", a.mgmURL.String())
+	return nil
+}
+
+// isConnectionError checks if the error is a connection-related error that should trigger reconnection
+func isConnectionError(err error) bool {
+	if err == nil {
+		return false
+	}
+	s, ok := status.FromError(err)
+	if !ok {
+		return false
+	}
+	// These error codes indicate connection issues
+	return s.Code() == codes.Unavailable ||
+		s.Code() == codes.DeadlineExceeded ||
+		s.Code() == codes.Canceled ||
+		s.Code() == codes.Internal
+}
+
+// withRetry wraps an operation with exponential backoff retry logic
+// It automatically reconnects on connection errors
+func (a *Auth) withRetry(ctx context.Context, operation func(client *mgm.GrpcClient) error) error {
+	backoffSettings := &backoff.ExponentialBackOff{
+		InitialInterval:     500 * time.Millisecond,
+		RandomizationFactor: 0.5,
+		Multiplier:          1.5,
+		MaxInterval:         10 * time.Second,
+		MaxElapsedTime:      2 * time.Minute,
+		Stop:                backoff.Stop,
+		Clock:               backoff.SystemClock,
+	}
+	backoffSettings.Reset()
+
+	return backoff.RetryNotify(
+		func() error {
+			// Capture the client BEFORE the operation to ensure we track the correct client
+			a.mutex.RLock()
+			currentClient := a.client
+			a.mutex.RUnlock()
+
+			if currentClient == nil {
+				return status.Errorf(codes.Unavailable, "client is not initialized")
+			}
+
+			// Execute operation with the captured client
+			err := operation(currentClient)
+			if err == nil {
+				return nil
+			}
+
+			// If it's a connection error, attempt reconnection using the client that was actually used
+			if isConnectionError(err) {
+				log.Warnf("connection error detected, attempting reconnection: %v", err)
+
+				if reconnectErr := a.reconnect(ctx, currentClient); reconnectErr != nil {
+					log.Errorf("reconnection failed: %v", reconnectErr)
+					return reconnectErr
+				}
+				// Return the original error to trigger retry with the new connection
+				return err
+			}
+
+			// For authentication errors, don't retry
+			if isAuthenticationError(err) {
+				return backoff.Permanent(err)
+			}
+
+			return err
+		},
+		backoff.WithContext(backoffSettings, ctx),
+		func(err error, duration time.Duration) {
+			log.Warnf("operation failed, retrying in %v: %v", duration, err)
+		},
+	)
+}
+
+// isAuthenticationError checks if the error is an authentication-related error that should not be retried.
+// Returns true if the error is InvalidArgument or PermissionDenied, indicating that retrying won't help.
+func isAuthenticationError(err error) bool {
+	if err == nil {
+		return false
+	}
+	s, ok := status.FromError(err)
+	if !ok {
+		return false
+	}
+	return s.Code() == codes.InvalidArgument || s.Code() == codes.PermissionDenied
+}
+
+// isPermissionDenied checks if the error is a PermissionDenied error.
+// This is used to determine if early exit from backoff is needed (e.g., when the server responded but denied access).
+func isPermissionDenied(err error) bool {
+	if err == nil {
+		return false
+	}
+	s, ok := status.FromError(err)
+	if !ok {
+		return false
+	}
+	return s.Code() == codes.PermissionDenied
+}
+
+func isLoginNeeded(err error) bool {
+	return isAuthenticationError(err)
+}
+
+func isRegistrationNeeded(err error) bool {
+	return isPermissionDenied(err)
+}

client/internal/auth/device_flow.go

@@ -15,7 +15,6 @@ import (
 
 	log "github.com/sirupsen/logrus"
 
-	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/util/embeddedroots"
 )
 
@@ -26,12 +25,56 @@ const (
 
 var _ OAuthFlow = &DeviceAuthorizationFlow{}
 
+// DeviceAuthProviderConfig has all attributes needed to initiate a device authorization flow
+type DeviceAuthProviderConfig struct {
+	// ClientID An IDP application client id
+	ClientID string
+	// ClientSecret An IDP application client secret
+	ClientSecret string
+	// Domain An IDP API domain
+	// Deprecated. Use OIDCConfigEndpoint instead
+	Domain string
+	// Audience An Audience for to authorization validation
+	Audience string
+	// TokenEndpoint is the endpoint of an IDP manager where clients can obtain access token
+	TokenEndpoint string
+	// DeviceAuthEndpoint is the endpoint of an IDP manager where clients can obtain device authorization code
+	DeviceAuthEndpoint string
+	// Scopes provides the scopes to be included in the token request
+	Scope string
+	// UseIDToken indicates if the id token should be used for authentication
+	UseIDToken bool
+	// LoginHint is used to pre-fill the email/username field during authentication
+	LoginHint string
+}
+
+// validateDeviceAuthConfig validates device authorization provider configuration
+func validateDeviceAuthConfig(config *DeviceAuthProviderConfig) error {
+	errorMsgFormat := "invalid provider configuration received from management: %s value is empty. Contact your NetBird administrator"
+
+	if config.Audience == "" {
+		return fmt.Errorf(errorMsgFormat, "Audience")
+	}
+	if config.ClientID == "" {
+		return fmt.Errorf(errorMsgFormat, "Client ID")
+	}
+	if config.TokenEndpoint == "" {
+		return fmt.Errorf(errorMsgFormat, "Token Endpoint")
+	}
+	if config.DeviceAuthEndpoint == "" {
+		return fmt.Errorf(errorMsgFormat, "Device Auth Endpoint")
+	}
+	if config.Scope == "" {
+		return fmt.Errorf(errorMsgFormat, "Device Auth Scopes")
+	}
+	return nil
+}
+
 // DeviceAuthorizationFlow implements the OAuthFlow interface,
 // for the Device Authorization Flow.
 type DeviceAuthorizationFlow struct {
-	providerConfig internal.DeviceAuthProviderConfig
-
-	HTTPClient HTTPClient
+	providerConfig DeviceAuthProviderConfig
+	HTTPClient     HTTPClient
 }
 
 // RequestDeviceCodePayload used for request device code payload for auth0
@@ -57,7 +100,7 @@ type TokenRequestResponse struct {
 }
 
 // NewDeviceAuthorizationFlow returns device authorization flow client
-func NewDeviceAuthorizationFlow(config internal.DeviceAuthProviderConfig) (*DeviceAuthorizationFlow, error) {
+func NewDeviceAuthorizationFlow(config DeviceAuthProviderConfig) (*DeviceAuthorizationFlow, error) {
 	httpTransport := http.DefaultTransport.(*http.Transport).Clone()
 	httpTransport.MaxIdleConns = 5
 
@@ -89,6 +132,11 @@ func (d *DeviceAuthorizationFlow) GetClientID(ctx context.Context) string {
 	return d.providerConfig.ClientID
 }
 
+// SetLoginHint sets the login hint for the device authorization flow
+func (d *DeviceAuthorizationFlow) SetLoginHint(hint string) {
+	d.providerConfig.LoginHint = hint
+}
+
 // RequestAuthInfo requests a device code login flow information from Hosted
 func (d *DeviceAuthorizationFlow) RequestAuthInfo(ctx context.Context) (AuthFlowInfo, error) {
 	form := url.Values{}
@@ -199,14 +247,22 @@ func (d *DeviceAuthorizationFlow) requestToken(info AuthFlowInfo) (TokenRequestR
 }
 
 // WaitToken waits user's login and authorize the app. Once the user's authorize
-// it retrieves the access token from Hosted's endpoint and validates it before returning
+// it retrieves the access token from Hosted's endpoint and validates it before returning.
+// The method creates a timeout context internally based on info.ExpiresIn.
 func (d *DeviceAuthorizationFlow) WaitToken(ctx context.Context, info AuthFlowInfo) (TokenInfo, error) {
+	// Create timeout context based on flow expiration
+	timeout := time.Duration(info.ExpiresIn) * time.Second
+	waitCtx, cancel := context.WithTimeout(ctx, timeout)
+	defer cancel()
+
 	interval := time.Duration(info.Interval) * time.Second
 	ticker := time.NewTicker(interval)
+	defer ticker.Stop()
+
 	for {
 		select {
-		case <-ctx.Done():
-			return TokenInfo{}, ctx.Err()
+		case <-waitCtx.Done():
+			return TokenInfo{}, waitCtx.Err()
 		case <-ticker.C:
 
 			tokenResponse, err := d.requestToken(info)

client/internal/auth/device_flow_test.go

@@ -12,8 +12,6 @@ import (
 
 	"github.com/golang-jwt/jwt/v5"
 	"github.com/stretchr/testify/require"
-
-	"github.com/netbirdio/netbird/client/internal"
 )
 
 type mockHTTPClient struct {
@@ -115,18 +113,19 @@ func TestHosted_RequestDeviceCode(t *testing.T) {
 				err:     testCase.inputReqError,
 			}
 
-			deviceFlow := &DeviceAuthorizationFlow{
-				providerConfig: internal.DeviceAuthProviderConfig{
-					Audience:           expectedAudience,
-					ClientID:           expectedClientID,
-					Scope:              expectedScope,
-					TokenEndpoint:      "test.hosted.com/token",
-					DeviceAuthEndpoint: "test.hosted.com/device/auth",
-					UseIDToken:         false,
-				},
-				HTTPClient: &httpClient,
+			config := DeviceAuthProviderConfig{
+				Audience:           expectedAudience,
+				ClientID:           expectedClientID,
+				Scope:              expectedScope,
+				TokenEndpoint:      "test.hosted.com/token",
+				DeviceAuthEndpoint: "test.hosted.com/device/auth",
+				UseIDToken:         false,
 			}
 
+			deviceFlow, err := NewDeviceAuthorizationFlow(config)
+			require.NoError(t, err, "creating device flow should not fail")
+			deviceFlow.HTTPClient = &httpClient
+
 			authInfo, err := deviceFlow.RequestAuthInfo(context.TODO())
 			testCase.testingErrFunc(t, err, testCase.expectedErrorMSG)
 
@@ -280,18 +279,19 @@ func TestHosted_WaitToken(t *testing.T) {
 				countResBody: testCase.inputCountResBody,
 			}
 
-			deviceFlow := DeviceAuthorizationFlow{
-				providerConfig: internal.DeviceAuthProviderConfig{
-					Audience:           testCase.inputAudience,
-					ClientID:           clientID,
-					TokenEndpoint:      "test.hosted.com/token",
-					DeviceAuthEndpoint: "test.hosted.com/device/auth",
-					Scope:              "openid",
-					UseIDToken:         false,
-				},
-				HTTPClient: &httpClient,
+			config := DeviceAuthProviderConfig{
+				Audience:           testCase.inputAudience,
+				ClientID:           clientID,
+				TokenEndpoint:      "test.hosted.com/token",
+				DeviceAuthEndpoint: "test.hosted.com/device/auth",
+				Scope:              "openid",
+				UseIDToken:         false,
 			}
 
+			deviceFlow, err := NewDeviceAuthorizationFlow(config)
+			require.NoError(t, err, "creating device flow should not fail")
+			deviceFlow.HTTPClient = &httpClient
+
 			ctx, cancel := context.WithTimeout(context.TODO(), testCase.inputTimeout)
 			defer cancel()
 			tokenInfo, err := deviceFlow.WaitToken(ctx, testCase.inputInfo)

client/internal/auth/oauth.go

@@ -10,7 +10,6 @@ import (
 	"google.golang.org/grpc/codes"
 	gstatus "google.golang.org/grpc/status"
 
-	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/client/internal/profilemanager"
 )
 
@@ -87,19 +86,33 @@ func NewOAuthFlow(ctx context.Context, config *profilemanager.Config, isUnixDesk
 
 // authenticateWithPKCEFlow initializes the Proof Key for Code Exchange flow auth flow
 func authenticateWithPKCEFlow(ctx context.Context, config *profilemanager.Config, hint string) (OAuthFlow, error) {
-	pkceFlowInfo, err := internal.GetPKCEAuthorizationFlowInfo(ctx, config.PrivateKey, config.ManagementURL, config.ClientCertKeyPair)
+	authClient, err := NewAuth(ctx, config.PrivateKey, config.ManagementURL, config)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
+
+	pkceFlowInfo, err := authClient.getPKCEFlow(authClient.client)
 	if err != nil {
 		return nil, fmt.Errorf("getting pkce authorization flow info failed with error: %v", err)
 	}
 
-	pkceFlowInfo.ProviderConfig.LoginHint = hint
+	if hint != "" {
+		pkceFlowInfo.SetLoginHint(hint)
+	}
 
-	return NewPKCEAuthorizationFlow(pkceFlowInfo.ProviderConfig)
+	return pkceFlowInfo, nil
 }
 
 // authenticateWithDeviceCodeFlow initializes the Device Code auth Flow
 func authenticateWithDeviceCodeFlow(ctx context.Context, config *profilemanager.Config, hint string) (OAuthFlow, error) {
-	deviceFlowInfo, err := internal.GetDeviceAuthorizationFlowInfo(ctx, config.PrivateKey, config.ManagementURL)
+	authClient, err := NewAuth(ctx, config.PrivateKey, config.ManagementURL, config)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
+
+	deviceFlowInfo, err := authClient.getDeviceFlow(authClient.client)
 	if err != nil {
 		switch s, ok := gstatus.FromError(err); {
 		case ok && s.Code() == codes.NotFound:
@@ -114,7 +127,9 @@ func authenticateWithDeviceCodeFlow(ctx context.Context, config *profilemanager.
 		}
 	}
 
-	deviceFlowInfo.ProviderConfig.LoginHint = hint
+	if hint != "" {
+		deviceFlowInfo.SetLoginHint(hint)
+	}
 
-	return NewDeviceAuthorizationFlow(deviceFlowInfo.ProviderConfig)
+	return deviceFlowInfo, nil
 }

client/internal/auth/pkce_flow.go

@@ -20,7 +20,6 @@ import (
 	log "github.com/sirupsen/logrus"
 	"golang.org/x/oauth2"
 
-	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/client/internal/templates"
 	"github.com/netbirdio/netbird/shared/management/client/common"
 )
@@ -35,17 +34,67 @@ const (
 	defaultPKCETimeoutSeconds = 300
 )
 
+// PKCEAuthProviderConfig has all attributes needed to initiate PKCE authorization flow
+type PKCEAuthProviderConfig struct {
+	// ClientID An IDP application client id
+	ClientID string
+	// ClientSecret An IDP application client secret
+	ClientSecret string
+	// Audience An Audience for to authorization validation
+	Audience string
+	// TokenEndpoint is the endpoint of an IDP manager where clients can obtain access token
+	TokenEndpoint string
+	// AuthorizationEndpoint is the endpoint of an IDP manager where clients can obtain authorization code
+	AuthorizationEndpoint string
+	// Scopes provides the scopes to be included in the token request
+	Scope string
+	// RedirectURL handles authorization code from IDP manager
+	RedirectURLs []string
+	// UseIDToken indicates if the id token should be used for authentication
+	UseIDToken bool
+	// ClientCertPair is used for mTLS authentication to the IDP
+	ClientCertPair *tls.Certificate
+	// DisablePromptLogin makes the PKCE flow to not prompt the user for login
+	DisablePromptLogin bool
+	// LoginFlag is used to configure the PKCE flow login behavior
+	LoginFlag common.LoginFlag
+	// LoginHint is used to pre-fill the email/username field during authentication
+	LoginHint string
+}
+
+// validatePKCEConfig validates PKCE provider configuration
+func validatePKCEConfig(config *PKCEAuthProviderConfig) error {
+	errorMsgFormat := "invalid provider configuration received from management: %s value is empty. Contact your NetBird administrator"
+
+	if config.ClientID == "" {
+		return fmt.Errorf(errorMsgFormat, "Client ID")
+	}
+	if config.TokenEndpoint == "" {
+		return fmt.Errorf(errorMsgFormat, "Token Endpoint")
+	}
+	if config.AuthorizationEndpoint == "" {
+		return fmt.Errorf(errorMsgFormat, "Authorization Auth Endpoint")
+	}
+	if config.Scope == "" {
+		return fmt.Errorf(errorMsgFormat, "PKCE Auth Scopes")
+	}
+	if config.RedirectURLs == nil {
+		return fmt.Errorf(errorMsgFormat, "PKCE Redirect URLs")
+	}
+	return nil
+}
+
 // PKCEAuthorizationFlow implements the OAuthFlow interface for
 // the Authorization Code Flow with PKCE.
 type PKCEAuthorizationFlow struct {
-	providerConfig internal.PKCEAuthProviderConfig
+	providerConfig PKCEAuthProviderConfig
 	state          string
 	codeVerifier   string
 	oAuthConfig    *oauth2.Config
 }
 
 // NewPKCEAuthorizationFlow returns new PKCE authorization code flow.
-func NewPKCEAuthorizationFlow(config internal.PKCEAuthProviderConfig) (*PKCEAuthorizationFlow, error) {
+func NewPKCEAuthorizationFlow(config PKCEAuthProviderConfig) (*PKCEAuthorizationFlow, error) {
 	var availableRedirectURL string
 
 	excludedRanges := getSystemExcludedPortRanges()
@@ -124,10 +173,21 @@ func (p *PKCEAuthorizationFlow) RequestAuthInfo(ctx context.Context) (AuthFlowIn
 	}, nil
 }
 
+// SetLoginHint sets the login hint for the PKCE authorization flow
+func (p *PKCEAuthorizationFlow) SetLoginHint(hint string) {
+	p.providerConfig.LoginHint = hint
+}
+
 // WaitToken waits for the OAuth token in the PKCE Authorization Flow.
 // It starts an HTTP server to receive the OAuth token callback and waits for the token or an error.
 // Once the token is received, it is converted to TokenInfo and validated before returning.
-func (p *PKCEAuthorizationFlow) WaitToken(ctx context.Context, _ AuthFlowInfo) (TokenInfo, error) {
+// The method creates a timeout context internally based on info.ExpiresIn.
+func (p *PKCEAuthorizationFlow) WaitToken(ctx context.Context, info AuthFlowInfo) (TokenInfo, error) {
+	// Create timeout context based on flow expiration
+	timeout := time.Duration(info.ExpiresIn) * time.Second
+	waitCtx, cancel := context.WithTimeout(ctx, timeout)
+	defer cancel()
+
 	tokenChan := make(chan *oauth2.Token, 1)
 	errChan := make(chan error, 1)
 
@@ -138,7 +198,7 @@ func (p *PKCEAuthorizationFlow) WaitToken(ctx context.Context, _ AuthFlowInfo) (
 
 	server := &http.Server{Addr: fmt.Sprintf(":%s", parsedURL.Port())}
 	defer func() {
-		shutdownCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 		defer cancel()
 
 		if err := server.Shutdown(shutdownCtx); err != nil {
@@ -149,8 +209,8 @@ func (p *PKCEAuthorizationFlow) WaitToken(ctx context.Context, _ AuthFlowInfo) (
 	go p.startServer(server, tokenChan, errChan)
 
 	select {
-	case <-ctx.Done():
-		return TokenInfo{}, ctx.Err()
+	case <-waitCtx.Done():
+		return TokenInfo{}, waitCtx.Err()
 	case token := <-tokenChan:
 		return p.parseOAuthToken(token)
 	case err := <-errChan:

client/internal/auth/pkce_flow_test.go

@@ -9,7 +9,6 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	"github.com/netbirdio/netbird/client/internal"
 	mgm "github.com/netbirdio/netbird/shared/management/client/common"
 )
 
@@ -50,7 +49,7 @@ func TestPromptLogin(t *testing.T) {
 
 	for _, tc := range tt {
 		t.Run(tc.name, func(t *testing.T) {
-			config := internal.PKCEAuthProviderConfig{
+			config := PKCEAuthProviderConfig{
 				ClientID:              "test-client-id",
 				Audience:              "test-audience",
 				TokenEndpoint:         "https://test-token-endpoint.com/token",

client/internal/auth/pkce_flow_windows_test.go

@@ -9,8 +9,6 @@ import (
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
-
-	"github.com/netbirdio/netbird/client/internal"
 )
 
 func TestParseExcludedPortRanges(t *testing.T) {
@@ -95,7 +93,7 @@ func TestNewPKCEAuthorizationFlow_WithActualExcludedPorts(t *testing.T) {
 
 	availablePort := 65432
 
-	config := internal.PKCEAuthProviderConfig{
+	config := PKCEAuthProviderConfig{
 		ClientID:              "test-client-id",
 		Audience:              "test-audience",
 		TokenEndpoint:         "https://test-token-endpoint.com/token",

client/internal/device_auth.go

@@ -1,136 +0,0 @@
-package internal
-
-import (
-	"context"
-	"fmt"
-	"net/url"
-
-	log "github.com/sirupsen/logrus"
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
-
-	mgm "github.com/netbirdio/netbird/shared/management/client"
-)
-
-// DeviceAuthorizationFlow represents Device Authorization Flow information
-type DeviceAuthorizationFlow struct {
-	Provider       string
-	ProviderConfig DeviceAuthProviderConfig
-}
-
-// DeviceAuthProviderConfig has all attributes needed to initiate a device authorization flow
-type DeviceAuthProviderConfig struct {
-	// ClientID An IDP application client id
-	ClientID string
-	// ClientSecret An IDP application client secret
-	ClientSecret string
-	// Domain An IDP API domain
-	// Deprecated. Use OIDCConfigEndpoint instead
-	Domain string
-	// Audience An Audience for to authorization validation
-	Audience string
-	// TokenEndpoint is the endpoint of an IDP manager where clients can obtain access token
-	TokenEndpoint string
-	// DeviceAuthEndpoint is the endpoint of an IDP manager where clients can obtain device authorization code
-	DeviceAuthEndpoint string
-	// Scopes provides the scopes to be included in the token request
-	Scope string
-	// UseIDToken indicates if the id token should be used for authentication
-	UseIDToken bool
-	// LoginHint is used to pre-fill the email/username field during authentication
-	LoginHint string
-}
-
-// GetDeviceAuthorizationFlowInfo initialize a DeviceAuthorizationFlow instance and return with it
-func GetDeviceAuthorizationFlowInfo(ctx context.Context, privateKey string, mgmURL *url.URL) (DeviceAuthorizationFlow, error) {
-	// validate our peer's Wireguard PRIVATE key
-	myPrivateKey, err := wgtypes.ParseKey(privateKey)
-	if err != nil {
-		log.Errorf("failed parsing Wireguard key %s: [%s]", privateKey, err.Error())
-		return DeviceAuthorizationFlow{}, err
-	}
-
-	var mgmTLSEnabled bool
-	if mgmURL.Scheme == "https" {
-		mgmTLSEnabled = true
-	}
-
-	log.Debugf("connecting to Management Service %s", mgmURL.String())
-	mgmClient, err := mgm.NewClient(ctx, mgmURL.Host, myPrivateKey, mgmTLSEnabled)
-	if err != nil {
-		log.Errorf("failed connecting to Management Service %s %v", mgmURL.String(), err)
-		return DeviceAuthorizationFlow{}, err
-	}
-	log.Debugf("connected to the Management service %s", mgmURL.String())
-
-	defer func() {
-		err = mgmClient.Close()
-		if err != nil {
-			log.Warnf("failed to close the Management service client %v", err)
-		}
-	}()
-
-	serverKey, err := mgmClient.GetServerPublicKey()
-	if err != nil {
-		log.Errorf("failed while getting Management Service public key: %v", err)
-		return DeviceAuthorizationFlow{}, err
-	}
-
-	protoDeviceAuthorizationFlow, err := mgmClient.GetDeviceAuthorizationFlow(*serverKey)
-	if err != nil {
-		if s, ok := status.FromError(err); ok && s.Code() == codes.NotFound {
-			log.Warnf("server couldn't find device flow, contact admin: %v", err)
-			return DeviceAuthorizationFlow{}, err
-		}
-		log.Errorf("failed to retrieve device flow: %v", err)
-		return DeviceAuthorizationFlow{}, err
-	}
-
-	deviceAuthorizationFlow := DeviceAuthorizationFlow{
-		Provider: protoDeviceAuthorizationFlow.Provider.String(),
-
-		ProviderConfig: DeviceAuthProviderConfig{
-			Audience:           protoDeviceAuthorizationFlow.GetProviderConfig().GetAudience(),
-			ClientID:           protoDeviceAuthorizationFlow.GetProviderConfig().GetClientID(),
-			ClientSecret:       protoDeviceAuthorizationFlow.GetProviderConfig().GetClientSecret(),
-			Domain:             protoDeviceAuthorizationFlow.GetProviderConfig().Domain,
-			TokenEndpoint:      protoDeviceAuthorizationFlow.GetProviderConfig().GetTokenEndpoint(),
-			DeviceAuthEndpoint: protoDeviceAuthorizationFlow.GetProviderConfig().GetDeviceAuthEndpoint(),
-			Scope:              protoDeviceAuthorizationFlow.GetProviderConfig().GetScope(),
-			UseIDToken:         protoDeviceAuthorizationFlow.GetProviderConfig().GetUseIDToken(),
-		},
-	}
-
-	// keep compatibility with older management versions
-	if deviceAuthorizationFlow.ProviderConfig.Scope == "" {
-		deviceAuthorizationFlow.ProviderConfig.Scope = "openid"
-	}
-
-	err = isDeviceAuthProviderConfigValid(deviceAuthorizationFlow.ProviderConfig)
-	if err != nil {
-		return DeviceAuthorizationFlow{}, err
-	}
-
-	return deviceAuthorizationFlow, nil
-}
-
-func isDeviceAuthProviderConfigValid(config DeviceAuthProviderConfig) error {
-	errorMSGFormat := "invalid provider configuration received from management: %s value is empty. Contact your NetBird administrator"
-	if config.Audience == "" {
-		return fmt.Errorf(errorMSGFormat, "Audience")
-	}
-	if config.ClientID == "" {
-		return fmt.Errorf(errorMSGFormat, "Client ID")
-	}
-	if config.TokenEndpoint == "" {
-		return fmt.Errorf(errorMSGFormat, "Token Endpoint")
-	}
-	if config.DeviceAuthEndpoint == "" {
-		return fmt.Errorf(errorMSGFormat, "Device Auth Endpoint")
-	}
-	if config.Scope == "" {
-		return fmt.Errorf(errorMSGFormat, "Device Auth Scopes")
-	}
-	return nil
-}

client/internal/dns/handler_chain_test.go

@@ -112,6 +112,54 @@ func TestHandlerChain_ServeDNS_DomainMatching(t *testing.T) {
 			matchSubdomains: false,
 			shouldMatch:     false,
 		},
+		{
+			name:            "single letter TLD exact match",
+			handlerDomain:   "example.x.",
+			queryDomain:     "example.x.",
+			isWildcard:      false,
+			matchSubdomains: false,
+			shouldMatch:     true,
+		},
+		{
+			name:            "single letter TLD subdomain match",
+			handlerDomain:   "example.x.",
+			queryDomain:     "sub.example.x.",
+			isWildcard:      false,
+			matchSubdomains: true,
+			shouldMatch:     true,
+		},
+		{
+			name:            "single letter TLD wildcard match",
+			handlerDomain:   "*.example.x.",
+			queryDomain:     "sub.example.x.",
+			isWildcard:      true,
+			matchSubdomains: false,
+			shouldMatch:     true,
+		},
+		{
+			name:            "two letter domain labels",
+			handlerDomain:   "a.b.",
+			queryDomain:     "a.b.",
+			isWildcard:      false,
+			matchSubdomains: false,
+			shouldMatch:     true,
+		},
+		{
+			name:            "single character domain",
+			handlerDomain:   "x.",
+			queryDomain:     "x.",
+			isWildcard:      false,
+			matchSubdomains: false,
+			shouldMatch:     true,
+		},
+		{
+			name:            "single character domain with subdomain match",
+			handlerDomain:   "x.",
+			queryDomain:     "sub.x.",
+			isWildcard:      false,
+			matchSubdomains: true,
+			shouldMatch:     true,
+		},
 	}
 
 	for _, tt := range tests {

client/internal/dns/host_darwin.go

@@ -9,8 +9,10 @@ import (
 	"io"
 	"net/netip"
 	"os/exec"
+	"slices"
 	"strconv"
 	"strings"
+	"sync"
 
 	log "github.com/sirupsen/logrus"
 	"golang.org/x/exp/maps"
@@ -38,6 +40,9 @@ const (
 type systemConfigurator struct {
 	createdKeys       map[string]struct{}
 	systemDNSSettings SystemDNSSettings
+
+	mu              sync.RWMutex
+	origNameservers []netip.Addr
 }
 
 func newHostManager() (*systemConfigurator, error) {
@@ -218,6 +223,7 @@ func (s *systemConfigurator) getSystemDNSSettings() (SystemDNSSettings, error) {
 	}
 
 	var dnsSettings SystemDNSSettings
+	var serverAddresses []netip.Addr
 	inSearchDomainsArray := false
 	inServerAddressesArray := false
 
@@ -244,9 +250,12 @@ func (s *systemConfigurator) getSystemDNSSettings() (SystemDNSSettings, error) {
 			dnsSettings.Domains = append(dnsSettings.Domains, searchDomain)
 		} else if inServerAddressesArray {
 			address := strings.Split(line, " : ")[1]
-			if ip, err := netip.ParseAddr(address); err == nil && ip.Is4() {
-				dnsSettings.ServerIP = ip.Unmap()
-				inServerAddressesArray = false // Stop reading after finding the first IPv4 address
+			if ip, err := netip.ParseAddr(address); err == nil && !ip.IsUnspecified() {
+				ip = ip.Unmap()
+				serverAddresses = append(serverAddresses, ip)
+				if !dnsSettings.ServerIP.IsValid() && ip.Is4() {
+					dnsSettings.ServerIP = ip
+				}
 			}
 		}
 	}
@@ -258,9 +267,19 @@ func (s *systemConfigurator) getSystemDNSSettings() (SystemDNSSettings, error) {
 	// default to 53 port
 	dnsSettings.ServerPort = DefaultPort
 
+	s.mu.Lock()
+	s.origNameservers = serverAddresses
+	s.mu.Unlock()
+
 	return dnsSettings, nil
 }
 
+func (s *systemConfigurator) getOriginalNameservers() []netip.Addr {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return slices.Clone(s.origNameservers)
+}
+
 func (s *systemConfigurator) addSearchDomains(key, domains string, ip netip.Addr, port int) error {
 	err := s.addDNSState(key, domains, ip, port, true)
 	if err != nil {

client/internal/dns/host_darwin_test.go

@@ -109,3 +109,169 @@ func removeTestDNSKey(key string) error {
 	_, err := cmd.CombinedOutput()
 	return err
 }
+
+func TestGetOriginalNameservers(t *testing.T) {
+	configurator := &systemConfigurator{
+		createdKeys: make(map[string]struct{}),
+		origNameservers: []netip.Addr{
+			netip.MustParseAddr("8.8.8.8"),
+			netip.MustParseAddr("1.1.1.1"),
+		},
+	}
+
+	servers := configurator.getOriginalNameservers()
+	assert.Len(t, servers, 2)
+	assert.Equal(t, netip.MustParseAddr("8.8.8.8"), servers[0])
+	assert.Equal(t, netip.MustParseAddr("1.1.1.1"), servers[1])
+}
+
+func TestGetOriginalNameserversFromSystem(t *testing.T) {
+	configurator := &systemConfigurator{
+		createdKeys: make(map[string]struct{}),
+	}
+
+	_, err := configurator.getSystemDNSSettings()
+	require.NoError(t, err)
+
+	servers := configurator.getOriginalNameservers()
+
+	require.NotEmpty(t, servers, "expected at least one DNS server from system configuration")
+
+	for _, server := range servers {
+		assert.True(t, server.IsValid(), "server address should be valid")
+		assert.False(t, server.IsUnspecified(), "server address should not be unspecified")
+	}
+
+	t.Logf("found %d original nameservers: %v", len(servers), servers)
+}
+
+func setupTestConfigurator(t *testing.T) (*systemConfigurator, *statemanager.Manager, func()) {
+	t.Helper()
+
+	tmpDir := t.TempDir()
+	stateFile := filepath.Join(tmpDir, "state.json")
+	sm := statemanager.New(stateFile)
+	sm.RegisterState(&ShutdownState{})
+	sm.Start()
+
+	configurator := &systemConfigurator{
+		createdKeys: make(map[string]struct{}),
+	}
+
+	searchKey := getKeyWithInput(netbirdDNSStateKeyFormat, searchSuffix)
+	matchKey := getKeyWithInput(netbirdDNSStateKeyFormat, matchSuffix)
+	localKey := getKeyWithInput(netbirdDNSStateKeyFormat, localSuffix)
+
+	cleanup := func() {
+		_ = sm.Stop(context.Background())
+		for _, key := range []string{searchKey, matchKey, localKey} {
+			_ = removeTestDNSKey(key)
+		}
+	}
+
+	return configurator, sm, cleanup
+}
+
+func TestOriginalNameserversNoTransition(t *testing.T) {
+	netbirdIP := netip.MustParseAddr("100.64.0.1")
+
+	testCases := []struct {
+		name     string
+		routeAll bool
+	}{
+		{"routeall_false", false},
+		{"routeall_true", true},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			configurator, sm, cleanup := setupTestConfigurator(t)
+			defer cleanup()
+
+			_, err := configurator.getSystemDNSSettings()
+			require.NoError(t, err)
+			initialServers := configurator.getOriginalNameservers()
+			t.Logf("Initial servers: %v", initialServers)
+			require.NotEmpty(t, initialServers)
+
+			for _, srv := range initialServers {
+				require.NotEqual(t, netbirdIP, srv, "initial servers should not contain NetBird IP")
+			}
+
+			config := HostDNSConfig{
+				ServerIP:   netbirdIP,
+				ServerPort: 53,
+				RouteAll:   tc.routeAll,
+				Domains:    []DomainConfig{{Domain: "example.com", MatchOnly: true}},
+			}
+
+			for i := 1; i <= 2; i++ {
+				err = configurator.applyDNSConfig(config, sm)
+				require.NoError(t, err)
+
+				servers := configurator.getOriginalNameservers()
+				t.Logf("After apply %d (RouteAll=%v): %v", i, tc.routeAll, servers)
+				assert.Equal(t, initialServers, servers)
+			}
+		})
+	}
+}
+
+func TestOriginalNameserversRouteAllTransition(t *testing.T) {
+	netbirdIP := netip.MustParseAddr("100.64.0.1")
+
+	testCases := []struct {
+		name         string
+		initialRoute bool
+	}{
+		{"start_with_routeall_false", false},
+		{"start_with_routeall_true", true},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			configurator, sm, cleanup := setupTestConfigurator(t)
+			defer cleanup()
+
+			_, err := configurator.getSystemDNSSettings()
+			require.NoError(t, err)
+			initialServers := configurator.getOriginalNameservers()
+			t.Logf("Initial servers: %v", initialServers)
+			require.NotEmpty(t, initialServers)
+
+			config := HostDNSConfig{
+				ServerIP:   netbirdIP,
+				ServerPort: 53,
+				RouteAll:   tc.initialRoute,
+				Domains:    []DomainConfig{{Domain: "example.com", MatchOnly: true}},
+			}
+
+			// First apply
+			err = configurator.applyDNSConfig(config, sm)
+			require.NoError(t, err)
+			servers := configurator.getOriginalNameservers()
+			t.Logf("After first apply (RouteAll=%v): %v", tc.initialRoute, servers)
+			assert.Equal(t, initialServers, servers)
+
+			// Toggle RouteAll
+			config.RouteAll = !tc.initialRoute
+			err = configurator.applyDNSConfig(config, sm)
+			require.NoError(t, err)
+			servers = configurator.getOriginalNameservers()
+			t.Logf("After toggle (RouteAll=%v): %v", config.RouteAll, servers)
+			assert.Equal(t, initialServers, servers)
+
+			// Toggle back
+			config.RouteAll = tc.initialRoute
+			err = configurator.applyDNSConfig(config, sm)
+			require.NoError(t, err)
+			servers = configurator.getOriginalNameservers()
+			t.Logf("After toggle back (RouteAll=%v): %v", config.RouteAll, servers)
+			assert.Equal(t, initialServers, servers)
+
+			for _, srv := range servers {
+				assert.NotEqual(t, netbirdIP, srv, "servers should not contain NetBird IP")
+			}
+		})
+	}
+}

client/internal/dns/host_windows.go

@@ -42,6 +42,10 @@ const (
 	dnsPolicyConfigConfigOptionsKey     = "ConfigOptions"
 	dnsPolicyConfigConfigOptionsValue   = 0x8
 
+	// NRPT rules cannot handle more than 50 domains per rule.
+	// This is an undocumented Windows limitation.
+	nrptMaxDomainsPerRule = 50
+
 	interfaceConfigPath          = `SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces`
 	interfaceConfigNameServerKey = "NameServer"
 	interfaceConfigSearchListKey = "SearchList"
@@ -239,23 +243,32 @@ func (r *registryConfigurator) addDNSSetupForAll(ip netip.Addr) error {
 func (r *registryConfigurator) addDNSMatchPolicy(domains []string, ip netip.Addr) (int, error) {
 	// if the gpo key is present, we need to put our DNS settings there, otherwise our config might be ignored
 	// see https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-gpnrpt/8cc31cb9-20cb-4140-9e85-3e08703b4745
-	for i, domain := range domains {
-		localPath := fmt.Sprintf("%s-%d", dnsPolicyConfigMatchPath, i)
-		gpoPath := fmt.Sprintf("%s-%d", gpoDnsPolicyConfigMatchPath, i)
 
-		singleDomain := []string{domain}
+	// NRPT rules have an undocumented restriction: each rule can only handle up to 50 domains.
+	// We need to batch domains into chunks and create one NRPT rule per batch.
+	ruleIndex := 0
+	for i := 0; i < len(domains); i += nrptMaxDomainsPerRule {
+		end := i + nrptMaxDomainsPerRule
+		if end > len(domains) {
+			end = len(domains)
+		}
+		batchDomains := domains[i:end]
 
-		if err := r.configureDNSPolicy(localPath, singleDomain, ip); err != nil {
-			return i, fmt.Errorf("configure DNS Local policy for domain %s: %w", domain, err)
+		localPath := fmt.Sprintf("%s-%d", dnsPolicyConfigMatchPath, ruleIndex)
+		gpoPath := fmt.Sprintf("%s-%d", gpoDnsPolicyConfigMatchPath, ruleIndex)
+
+		if err := r.configureDNSPolicy(localPath, batchDomains, ip); err != nil {
+			return ruleIndex, fmt.Errorf("configure DNS Local policy for rule %d: %w", ruleIndex, err)
 		}
 
 		if r.gpo {
-			if err := r.configureDNSPolicy(gpoPath, singleDomain, ip); err != nil {
-				return i, fmt.Errorf("configure gpo DNS policy: %w", err)
+			if err := r.configureDNSPolicy(gpoPath, batchDomains, ip); err != nil {
+				return ruleIndex, fmt.Errorf("configure gpo DNS policy for rule %d: %w", ruleIndex, err)
 			}
 		}
 
-		log.Debugf("added NRPT entry for domain: %s", domain)
+		log.Debugf("added NRPT rule %d with %d domains", ruleIndex, len(batchDomains))
+		ruleIndex++
 	}
 
 	if r.gpo {
@@ -264,8 +277,8 @@ func (r *registryConfigurator) addDNSMatchPolicy(domains []string, ip netip.Addr
 		}
 	}
 
-	log.Infof("added %d separate NRPT entries. Domain list: %s", len(domains), domains)
-	return len(domains), nil
+	log.Infof("added %d NRPT rules for %d domains. Domain list: %s", ruleIndex, len(domains), domains)
+	return ruleIndex, nil
 }
 
 func (r *registryConfigurator) configureDNSPolicy(policyPath string, domains []string, ip netip.Addr) error {

client/internal/dns/host_windows_test.go

@@ -97,6 +97,107 @@ func registryKeyExists(path string) (bool, error) {
 }
 
 func cleanupRegistryKeys(*testing.T) {
-	cfg := &registryConfigurator{nrptEntryCount: 10}
+	// Clean up more entries to account for batching tests with many domains
+	cfg := &registryConfigurator{nrptEntryCount: 20}
 	_ = cfg.removeDNSMatchPolicies()
 }
+
+// TestNRPTDomainBatching verifies that domains are correctly batched into NRPT rules
+// with a maximum of 50 domains per rule (Windows limitation).
+func TestNRPTDomainBatching(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping registry integration test in short mode")
+	}
+
+	defer cleanupRegistryKeys(t)
+	cleanupRegistryKeys(t)
+
+	testIP := netip.MustParseAddr("100.64.0.1")
+
+	// Create a test interface registry key so updateSearchDomains doesn't fail
+	testGUID := "{12345678-1234-1234-1234-123456789ABC}"
+	interfacePath := `SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\` + testGUID
+	testKey, _, err := registry.CreateKey(registry.LOCAL_MACHINE, interfacePath, registry.SET_VALUE)
+	require.NoError(t, err, "Should create test interface registry key")
+	testKey.Close()
+	defer func() {
+		_ = registry.DeleteKey(registry.LOCAL_MACHINE, interfacePath)
+	}()
+
+	cfg := &registryConfigurator{
+		guid: testGUID,
+		gpo:  false,
+	}
+
+	testCases := []struct {
+		name              string
+		domainCount       int
+		expectedRuleCount int
+	}{
+		{
+			name:              "Less than 50 domains (single rule)",
+			domainCount:       30,
+			expectedRuleCount: 1,
+		},
+		{
+			name:              "Exactly 50 domains (single rule)",
+			domainCount:       50,
+			expectedRuleCount: 1,
+		},
+		{
+			name:              "51 domains (two rules)",
+			domainCount:       51,
+			expectedRuleCount: 2,
+		},
+		{
+			name:              "100 domains (two rules)",
+			domainCount:       100,
+			expectedRuleCount: 2,
+		},
+		{
+			name:              "125 domains (three rules: 50+50+25)",
+			domainCount:       125,
+			expectedRuleCount: 3,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			// Clean up before each subtest
+			cleanupRegistryKeys(t)
+
+			// Generate domains
+			domains := make([]DomainConfig, tc.domainCount)
+			for i := 0; i < tc.domainCount; i++ {
+				domains[i] = DomainConfig{
+					Domain:    fmt.Sprintf("domain%d.com", i+1),
+					MatchOnly: true,
+				}
+			}
+
+			config := HostDNSConfig{
+				ServerIP: testIP,
+				Domains:  domains,
+			}
+
+			err := cfg.applyDNSConfig(config, nil)
+			require.NoError(t, err)
+
+			// Verify that exactly expectedRuleCount rules were created
+			assert.Equal(t, tc.expectedRuleCount, cfg.nrptEntryCount,
+				"Should create %d NRPT rules for %d domains", tc.expectedRuleCount, tc.domainCount)
+
+			// Verify all expected rules exist
+			for i := 0; i < tc.expectedRuleCount; i++ {
+				exists, err := registryKeyExists(fmt.Sprintf("%s-%d", dnsPolicyConfigMatchPath, i))
+				require.NoError(t, err)
+				assert.True(t, exists, "NRPT rule %d should exist", i)
+			}
+
+			// Verify no extra rules were created
+			exists, err := registryKeyExists(fmt.Sprintf("%s-%d", dnsPolicyConfigMatchPath, tc.expectedRuleCount))
+			require.NoError(t, err)
+			assert.False(t, exists, "No NRPT rule should exist at index %d", tc.expectedRuleCount)
+		})
+	}
+}

client/internal/dns/mock_server.go

@@ -84,3 +84,13 @@ func (m *MockServer) UpdateServerConfig(domains dnsconfig.ServerDomains) error {
 func (m *MockServer) PopulateManagementDomain(mgmtURL *url.URL) error {
 	return nil
 }
+
+// BeginBatch mock implementation of BeginBatch from Server interface
+func (m *MockServer) BeginBatch() {
+	// Mock implementation - no-op
+}
+
+// EndBatch mock implementation of EndBatch from Server interface
+func (m *MockServer) EndBatch() {
+	// Mock implementation - no-op
+}

client/internal/dns/server.go

@@ -41,6 +41,8 @@ type IosDnsManager interface {
 type Server interface {
 	RegisterHandler(domains domain.List, handler dns.Handler, priority int)
 	DeregisterHandler(domains domain.List, priority int)
+	BeginBatch()
+	EndBatch()
 	Initialize() error
 	Stop()
 	DnsIP() netip.Addr
@@ -83,6 +85,7 @@ type DefaultServer struct {
 	currentConfigHash  uint64
 	handlerChain       *HandlerChain
 	extraDomains       map[domain.Domain]int
+	batchMode          bool
 
 	mgmtCacheResolver *mgmt.Resolver
 
@@ -230,7 +233,9 @@ func (s *DefaultServer) RegisterHandler(domains domain.List, handler dns.Handler
 		// convert to zone with simple ref counter
 		s.extraDomains[toZone(domain)]++
 	}
-	s.applyHostConfig()
+	if !s.batchMode {
+		s.applyHostConfig()
+	}
 }
 
 func (s *DefaultServer) registerHandler(domains []string, handler dns.Handler, priority int) {
@@ -259,6 +264,28 @@ func (s *DefaultServer) DeregisterHandler(domains domain.List, priority int) {
 			delete(s.extraDomains, zone)
 		}
 	}
+	if !s.batchMode {
+		s.applyHostConfig()
+	}
+}
+
+// BeginBatch starts batch mode for DNS handler registration/deregistration.
+// In batch mode, applyHostConfig() is not called after each handler operation,
+// allowing multiple handlers to be registered/deregistered efficiently.
+// Must be followed by EndBatch() to apply the accumulated changes.
+func (s *DefaultServer) BeginBatch() {
+	s.mux.Lock()
+	defer s.mux.Unlock()
+	log.Infof("DNS batch mode enabled")
+	s.batchMode = true
+}
+
+// EndBatch ends batch mode and applies all accumulated DNS configuration changes.
+func (s *DefaultServer) EndBatch() {
+	s.mux.Lock()
+	defer s.mux.Unlock()
+	log.Infof("DNS batch mode disabled, applying accumulated changes")
+	s.batchMode = false
 	s.applyHostConfig()
 }
 
@@ -508,7 +535,9 @@ func (s *DefaultServer) applyConfiguration(update nbdns.Config) error {
 		s.currentConfig.RouteAll = false
 	}
 
-	s.applyHostConfig()
+	if !s.batchMode {
+		s.applyHostConfig()
+	}
 
 	s.shutdownWg.Add(1)
 	go func() {
@@ -615,7 +644,7 @@ func (s *DefaultServer) applyHostConfig() {
 	s.registerFallback(config)
 }
 
-// registerFallback registers original nameservers as low-priority fallback handlers
+// registerFallback registers original nameservers as low-priority fallback handlers.
 func (s *DefaultServer) registerFallback(config HostDNSConfig) {
 	hostMgrWithNS, ok := s.hostManager.(hostManagerWithOriginalNS)
 	if !ok {
@@ -624,6 +653,7 @@ func (s *DefaultServer) registerFallback(config HostDNSConfig) {
 
 	originalNameservers := hostMgrWithNS.getOriginalNameservers()
 	if len(originalNameservers) == 0 {
+		s.deregisterHandler([]string{nbdns.RootZone}, PriorityFallback)
 		return
 	}
 
@@ -871,7 +901,9 @@ func (s *DefaultServer) upstreamCallbacks(
 			}
 		}
 
-		s.applyHostConfig()
+		if !s.batchMode {
+			s.applyHostConfig()
+		}
 
 		go func() {
 			if err := s.stateManager.PersistState(s.ctx); err != nil {
@@ -906,7 +938,9 @@ func (s *DefaultServer) upstreamCallbacks(
 			s.registerHandler([]string{nbdns.RootZone}, handler, priority)
 		}
 
-		s.applyHostConfig()
+		if !s.batchMode {
+			s.applyHostConfig()
+		}
 
 		s.updateNSState(nsGroup, nil, true)
 	}

client/internal/dns/server_export_test.go

@@ -18,7 +18,12 @@ func TestGetServerDns(t *testing.T) {
 		t.Errorf("invalid dns server instance: %s", err)
 	}
 
-	if srvB != srv {
+	mockSrvB, ok := srvB.(*MockServer)
+	if !ok {
+		t.Errorf("returned server is not a MockServer")
+	}
+
+	if mockSrvB != srv {
 		t.Errorf("mismatch dns instances")
 	}
 }

client/internal/dns/test/mock.go

@@ -8,15 +8,21 @@ import (
 
 type MockResponseWriter struct {
 	WriteMsgFunc func(m *dns.Msg) error
+	lastResponse *dns.Msg
 }
 
 func (rw *MockResponseWriter) WriteMsg(m *dns.Msg) error {
+	rw.lastResponse = m
 	if rw.WriteMsgFunc != nil {
 		return rw.WriteMsgFunc(m)
 	}
 	return nil
 }
 
+func (rw *MockResponseWriter) GetLastResponse() *dns.Msg {
+	return rw.lastResponse
+}
+
 func (rw *MockResponseWriter) LocalAddr() net.Addr       { return nil }
 func (rw *MockResponseWriter) RemoteAddr() net.Addr      { return nil }
 func (rw *MockResponseWriter) Write([]byte) (int, error) { return 0, nil }

client/internal/engine.go

@@ -505,6 +505,10 @@ func (e *Engine) Start(netbirdConfig *mgmProto.NetbirdConfig, mgmtURL *url.URL)
 		return fmt.Errorf("up wg interface: %w", err)
 	}
 
+	// Set up notrack rules immediately after proxy is listening to prevent
+	// conntrack entries from being created before the rules are in place
+	e.setupWGProxyNoTrack()
+
 	// Set the WireGuard interface for rosenpass after interface is up
 	if e.rpManager != nil {
 		e.rpManager.SetInterface(e.wgInterface)
@@ -569,9 +573,11 @@ func (e *Engine) createFirewall() error {
 
 	var err error
 	e.firewall, err = firewall.NewFirewall(e.wgInterface, e.stateManager, e.flowManager.GetLogger(), e.config.DisableServerRoutes, e.config.MTU)
-	if err != nil || e.firewall == nil {
-		log.Errorf("failed creating firewall manager: %s", err)
-		return nil
+	if err != nil {
+		return fmt.Errorf("create firewall manager: %w", err)
+	}
+	if e.firewall == nil {
+		return fmt.Errorf("create firewall manager: received nil manager")
 	}
 
 	if err := e.initFirewall(); err != nil {
@@ -617,6 +623,23 @@ func (e *Engine) initFirewall() error {
 	return nil
 }
 
+// setupWGProxyNoTrack configures connection tracking exclusion for WireGuard proxy traffic.
+// This prevents conntrack/MASQUERADE from affecting loopback traffic between WireGuard and the eBPF proxy.
+func (e *Engine) setupWGProxyNoTrack() {
+	if e.firewall == nil {
+		return
+	}
+
+	proxyPort := e.wgInterface.GetProxyPort()
+	if proxyPort == 0 {
+		return
+	}
+
+	if err := e.firewall.SetupEBPFProxyNoTrack(proxyPort, uint16(e.config.WgPort)); err != nil {
+		log.Warnf("failed to setup ebpf proxy notrack: %v", err)
+	}
+}
+
 func (e *Engine) blockLanAccess() {
 	if e.config.BlockInbound {
 		// no need to set up extra deny rules if inbound is already blocked in general
@@ -805,6 +828,10 @@ func (e *Engine) handleAutoUpdateVersion(autoUpdateSettings *mgmProto.AutoUpdate
 }
 
 func (e *Engine) handleSync(update *mgmProto.SyncResponse) error {
+	started := time.Now()
+	defer func() {
+		log.Infof("sync finished in %s", time.Since(started))
+	}()
 	e.syncMsgMux.Lock()
 	defer e.syncMsgMux.Unlock()
 
@@ -1644,6 +1671,7 @@ func (e *Engine) parseNATExternalIPMappings() []string {
 
 func (e *Engine) close() {
 	log.Debugf("removing Netbird interface %s", e.config.WgIfaceName)
+
 	if e.wgInterface != nil {
 		if err := e.wgInterface.Close(); err != nil {
 			log.Errorf("failed closing Netbird interface %s %v", e.config.WgIfaceName, err)

client/internal/engine_test.go

@@ -107,6 +107,7 @@ type MockWGIface struct {
 	GetStatsFunc               func() (map[string]configurer.WGStats, error)
 	GetInterfaceGUIDStringFunc func() (string, error)
 	GetProxyFunc               func() wgproxy.Proxy
+	GetProxyPortFunc           func() uint16
 	GetNetFunc                 func() *netstack.Net
 	LastActivitiesFunc         func() map[string]monotime.Time
 }
@@ -203,6 +204,13 @@ func (m *MockWGIface) GetProxy() wgproxy.Proxy {
 	return m.GetProxyFunc()
 }
 
+func (m *MockWGIface) GetProxyPort() uint16 {
+	if m.GetProxyPortFunc != nil {
+		return m.GetProxyPortFunc()
+	}
+	return 0
+}
+
 func (m *MockWGIface) GetNet() *netstack.Net {
 	return m.GetNetFunc()
 }

client/internal/iface_common.go

@@ -28,6 +28,7 @@ type wgIfaceBase interface {
 	Up() (*udpmux.UniversalUDPMuxDefault, error)
 	UpdateAddr(newAddr string) error
 	GetProxy() wgproxy.Proxy
+	GetProxyPort() uint16
 	UpdatePeer(peerKey string, allowedIps []netip.Prefix, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error
 	RemoveEndpointAddress(key string) error
 	RemovePeer(peerKey string) error

client/internal/login.go

@@ -1,201 +0,0 @@
-package internal
-
-import (
-	"context"
-	"net/url"
-
-	"github.com/google/uuid"
-	log "github.com/sirupsen/logrus"
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
-
-	"github.com/netbirdio/netbird/client/internal/profilemanager"
-	"github.com/netbirdio/netbird/client/ssh"
-	"github.com/netbirdio/netbird/client/system"
-	mgm "github.com/netbirdio/netbird/shared/management/client"
-	mgmProto "github.com/netbirdio/netbird/shared/management/proto"
-)
-
-// IsLoginRequired check that the server is support SSO or not
-func IsLoginRequired(ctx context.Context, config *profilemanager.Config) (bool, error) {
-	mgmURL := config.ManagementURL
-	mgmClient, err := getMgmClient(ctx, config.PrivateKey, mgmURL)
-	if err != nil {
-		return false, err
-	}
-	defer func() {
-		err = mgmClient.Close()
-		if err != nil {
-			cStatus, ok := status.FromError(err)
-			if !ok || ok && cStatus.Code() != codes.Canceled {
-				log.Warnf("failed to close the Management service client, err: %v", err)
-			}
-		}
-	}()
-	log.Debugf("connected to the Management service %s", mgmURL.String())
-
-	pubSSHKey, err := ssh.GeneratePublicKey([]byte(config.SSHKey))
-	if err != nil {
-		return false, err
-	}
-
-	_, _, err = doMgmLogin(ctx, mgmClient, pubSSHKey, config)
-	if isLoginNeeded(err) {
-		return true, nil
-	}
-	return false, err
-}
-
-// Login or register the client
-func Login(ctx context.Context, config *profilemanager.Config, setupKey string, jwtToken string) error {
-	mgmClient, err := getMgmClient(ctx, config.PrivateKey, config.ManagementURL)
-	if err != nil {
-		return err
-	}
-	defer func() {
-		err = mgmClient.Close()
-		if err != nil {
-			cStatus, ok := status.FromError(err)
-			if !ok || ok && cStatus.Code() != codes.Canceled {
-				log.Warnf("failed to close the Management service client, err: %v", err)
-			}
-		}
-	}()
-	log.Debugf("connected to the Management service %s", config.ManagementURL.String())
-
-	pubSSHKey, err := ssh.GeneratePublicKey([]byte(config.SSHKey))
-	if err != nil {
-		return err
-	}
-
-	serverKey, _, err := doMgmLogin(ctx, mgmClient, pubSSHKey, config)
-	if serverKey != nil && isRegistrationNeeded(err) {
-		log.Debugf("peer registration required")
-		_, err = registerPeer(ctx, *serverKey, mgmClient, setupKey, jwtToken, pubSSHKey, config)
-		if err != nil {
-			return err
-		}
-	} else if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func getMgmClient(ctx context.Context, privateKey string, mgmURL *url.URL) (*mgm.GrpcClient, error) {
-	// validate our peer's Wireguard PRIVATE key
-	myPrivateKey, err := wgtypes.ParseKey(privateKey)
-	if err != nil {
-		log.Errorf("failed parsing Wireguard key %s: [%s]", privateKey, err.Error())
-		return nil, err
-	}
-
-	var mgmTlsEnabled bool
-	if mgmURL.Scheme == "https" {
-		mgmTlsEnabled = true
-	}
-
-	log.Debugf("connecting to the Management service %s", mgmURL.String())
-	mgmClient, err := mgm.NewClient(ctx, mgmURL.Host, myPrivateKey, mgmTlsEnabled)
-	if err != nil {
-		log.Errorf("failed connecting to the Management service %s %v", mgmURL.String(), err)
-		return nil, err
-	}
-	return mgmClient, err
-}
-
-func doMgmLogin(ctx context.Context, mgmClient *mgm.GrpcClient, pubSSHKey []byte, config *profilemanager.Config) (*wgtypes.Key, *mgmProto.LoginResponse, error) {
-	serverKey, err := mgmClient.GetServerPublicKey()
-	if err != nil {
-		log.Errorf("failed while getting Management Service public key: %v", err)
-		return nil, nil, err
-	}
-
-	sysInfo := system.GetInfo(ctx)
-	sysInfo.SetFlags(
-		config.RosenpassEnabled,
-		config.RosenpassPermissive,
-		config.ServerSSHAllowed,
-		config.DisableClientRoutes,
-		config.DisableServerRoutes,
-		config.DisableDNS,
-		config.DisableFirewall,
-		config.BlockLANAccess,
-		config.BlockInbound,
-		config.LazyConnectionEnabled,
-		config.EnableSSHRoot,
-		config.EnableSSHSFTP,
-		config.EnableSSHLocalPortForwarding,
-		config.EnableSSHRemotePortForwarding,
-		config.DisableSSHAuth,
-	)
-	loginResp, err := mgmClient.Login(*serverKey, sysInfo, pubSSHKey, config.DNSLabels)
-	return serverKey, loginResp, err
-}
-
-// registerPeer checks whether setupKey was provided via cmd line and if not then it prompts user to enter a key.
-// Otherwise tries to register with the provided setupKey via command line.
-func registerPeer(ctx context.Context, serverPublicKey wgtypes.Key, client *mgm.GrpcClient, setupKey string, jwtToken string, pubSSHKey []byte, config *profilemanager.Config) (*mgmProto.LoginResponse, error) {
-	validSetupKey, err := uuid.Parse(setupKey)
-	if err != nil && jwtToken == "" {
-		return nil, status.Errorf(codes.InvalidArgument, "invalid setup-key or no sso information provided, err: %v", err)
-	}
-
-	log.Debugf("sending peer registration request to Management Service")
-	info := system.GetInfo(ctx)
-	info.SetFlags(
-		config.RosenpassEnabled,
-		config.RosenpassPermissive,
-		config.ServerSSHAllowed,
-		config.DisableClientRoutes,
-		config.DisableServerRoutes,
-		config.DisableDNS,
-		config.DisableFirewall,
-		config.BlockLANAccess,
-		config.BlockInbound,
-		config.LazyConnectionEnabled,
-		config.EnableSSHRoot,
-		config.EnableSSHSFTP,
-		config.EnableSSHLocalPortForwarding,
-		config.EnableSSHRemotePortForwarding,
-		config.DisableSSHAuth,
-	)
-	loginResp, err := client.Register(serverPublicKey, validSetupKey.String(), jwtToken, info, pubSSHKey, config.DNSLabels)
-	if err != nil {
-		log.Errorf("failed registering peer %v", err)
-		return nil, err
-	}
-
-	log.Infof("peer has been successfully registered on Management Service")
-
-	return loginResp, nil
-}
-
-func isLoginNeeded(err error) bool {
-	if err == nil {
-		return false
-	}
-	s, ok := status.FromError(err)
-	if !ok {
-		return false
-	}
-	if s.Code() == codes.InvalidArgument || s.Code() == codes.PermissionDenied {
-		return true
-	}
-	return false
-}
-
-func isRegistrationNeeded(err error) bool {
-	if err == nil {
-		return false
-	}
-	s, ok := status.FromError(err)
-	if !ok {
-		return false
-	}
-	if s.Code() == codes.PermissionDenied {
-		return true
-	}
-	return false
-}

client/internal/networkmonitor/monitor.go

@@ -14,6 +14,7 @@ import (
 	"github.com/cenkalti/backoff/v4"
 	log "github.com/sirupsen/logrus"
 
+	"github.com/netbirdio/netbird/client/iface/netstack"
 	"github.com/netbirdio/netbird/client/internal/routemanager/systemops"
 )
 
@@ -37,6 +38,11 @@ func New() *NetworkMonitor {
 
 // Listen begins monitoring network changes. When a change is detected, this function will return without error.
 func (nw *NetworkMonitor) Listen(ctx context.Context) (err error) {
+	if netstack.IsEnabled() {
+		log.Debugf("Network monitor: skipping in netstack mode")
+		return nil
+	}
+
 	nw.mu.Lock()
 	if nw.cancel != nil {
 		nw.mu.Unlock()

client/internal/peer/conn.go

@@ -390,6 +390,8 @@ func (conn *Conn) onICEConnectionIsReady(priority conntype.ConnPriority, iceConn
 	}
 
 	conn.Log.Infof("configure WireGuard endpoint to: %s", ep.String())
+	conn.enableWgWatcherIfNeeded()
+
 	presharedKey := conn.presharedKey(iceConnInfo.RosenpassPubKey)
 	if err = conn.endpointUpdater.ConfigureWGEndpoint(ep, presharedKey); err != nil {
 		conn.handleConfigurationFailure(err, wgProxy)
@@ -402,8 +404,6 @@ func (conn *Conn) onICEConnectionIsReady(priority conntype.ConnPriority, iceConn
 		conn.wgProxyRelay.RedirectAs(ep)
 	}
 
-	conn.enableWgWatcherIfNeeded()
-
 	conn.currentConnPriority = priority
 	conn.statusICE.SetConnected()
 	conn.updateIceState(iceConnInfo)
@@ -501,6 +501,9 @@ func (conn *Conn) onRelayConnectionIsReady(rci RelayConnInfo) {
 
 	wgProxy.Work()
 	presharedKey := conn.presharedKey(rci.rosenpassPubKey)
+
+	conn.enableWgWatcherIfNeeded()
+
 	if err := conn.endpointUpdater.ConfigureWGEndpoint(wgProxy.EndpointAddr(), presharedKey); err != nil {
 		if err := wgProxy.CloseConn(); err != nil {
 			conn.Log.Warnf("Failed to close relay connection: %v", err)
@@ -509,8 +512,6 @@ func (conn *Conn) onRelayConnectionIsReady(rci RelayConnInfo) {
 		return
 	}
 
-	conn.enableWgWatcherIfNeeded()
-
 	wgConfigWorkaround()
 	conn.rosenpassRemoteKey = rci.rosenpassPubKey
 	conn.currentConnPriority = conntype.Relay

client/internal/pkce_auth.go

@@ -1,138 +0,0 @@
-package internal
-
-import (
-	"context"
-	"crypto/tls"
-	"fmt"
-	"net/url"
-
-	log "github.com/sirupsen/logrus"
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
-
-	mgm "github.com/netbirdio/netbird/shared/management/client"
-	"github.com/netbirdio/netbird/shared/management/client/common"
-)
-
-// PKCEAuthorizationFlow represents PKCE Authorization Flow information
-type PKCEAuthorizationFlow struct {
-	ProviderConfig PKCEAuthProviderConfig
-}
-
-// PKCEAuthProviderConfig has all attributes needed to initiate pkce authorization flow
-type PKCEAuthProviderConfig struct {
-	// ClientID An IDP application client id
-	ClientID string
-	// ClientSecret An IDP application client secret
-	ClientSecret string
-	// Audience An Audience for to authorization validation
-	Audience string
-	// TokenEndpoint is the endpoint of an IDP manager where clients can obtain access token
-	TokenEndpoint string
-	// AuthorizationEndpoint is the endpoint of an IDP manager where clients can obtain authorization code
-	AuthorizationEndpoint string
-	// Scopes provides the scopes to be included in the token request
-	Scope string
-	// RedirectURL handles authorization code from IDP manager
-	RedirectURLs []string
-	// UseIDToken indicates if the id token should be used for authentication
-	UseIDToken bool
-	// ClientCertPair is used for mTLS authentication to the IDP
-	ClientCertPair *tls.Certificate
-	// DisablePromptLogin makes the PKCE flow to not prompt the user for login
-	DisablePromptLogin bool
-	// LoginFlag is used to configure the PKCE flow login behavior
-	LoginFlag common.LoginFlag
-	// LoginHint is used to pre-fill the email/username field during authentication
-	LoginHint string
-}
-
-// GetPKCEAuthorizationFlowInfo initialize a PKCEAuthorizationFlow instance and return with it
-func GetPKCEAuthorizationFlowInfo(ctx context.Context, privateKey string, mgmURL *url.URL, clientCert *tls.Certificate) (PKCEAuthorizationFlow, error) {
-	// validate our peer's Wireguard PRIVATE key
-	myPrivateKey, err := wgtypes.ParseKey(privateKey)
-	if err != nil {
-		log.Errorf("failed parsing Wireguard key %s: [%s]", privateKey, err.Error())
-		return PKCEAuthorizationFlow{}, err
-	}
-
-	var mgmTLSEnabled bool
-	if mgmURL.Scheme == "https" {
-		mgmTLSEnabled = true
-	}
-
-	log.Debugf("connecting to Management Service %s", mgmURL.String())
-	mgmClient, err := mgm.NewClient(ctx, mgmURL.Host, myPrivateKey, mgmTLSEnabled)
-	if err != nil {
-		log.Errorf("failed connecting to Management Service %s %v", mgmURL.String(), err)
-		return PKCEAuthorizationFlow{}, err
-	}
-	log.Debugf("connected to the Management service %s", mgmURL.String())
-
-	defer func() {
-		err = mgmClient.Close()
-		if err != nil {
-			log.Warnf("failed to close the Management service client %v", err)
-		}
-	}()
-
-	serverKey, err := mgmClient.GetServerPublicKey()
-	if err != nil {
-		log.Errorf("failed while getting Management Service public key: %v", err)
-		return PKCEAuthorizationFlow{}, err
-	}
-
-	protoPKCEAuthorizationFlow, err := mgmClient.GetPKCEAuthorizationFlow(*serverKey)
-	if err != nil {
-		if s, ok := status.FromError(err); ok && s.Code() == codes.NotFound {
-			log.Warnf("server couldn't find pkce flow, contact admin: %v", err)
-			return PKCEAuthorizationFlow{}, err
-		}
-		log.Errorf("failed to retrieve pkce flow: %v", err)
-		return PKCEAuthorizationFlow{}, err
-	}
-
-	authFlow := PKCEAuthorizationFlow{
-		ProviderConfig: PKCEAuthProviderConfig{
-			Audience:              protoPKCEAuthorizationFlow.GetProviderConfig().GetAudience(),
-			ClientID:              protoPKCEAuthorizationFlow.GetProviderConfig().GetClientID(),
-			ClientSecret:          protoPKCEAuthorizationFlow.GetProviderConfig().GetClientSecret(),
-			TokenEndpoint:         protoPKCEAuthorizationFlow.GetProviderConfig().GetTokenEndpoint(),
-			AuthorizationEndpoint: protoPKCEAuthorizationFlow.GetProviderConfig().GetAuthorizationEndpoint(),
-			Scope:                 protoPKCEAuthorizationFlow.GetProviderConfig().GetScope(),
-			RedirectURLs:          protoPKCEAuthorizationFlow.GetProviderConfig().GetRedirectURLs(),
-			UseIDToken:            protoPKCEAuthorizationFlow.GetProviderConfig().GetUseIDToken(),
-			ClientCertPair:        clientCert,
-			DisablePromptLogin:    protoPKCEAuthorizationFlow.GetProviderConfig().GetDisablePromptLogin(),
-			LoginFlag:             common.LoginFlag(protoPKCEAuthorizationFlow.GetProviderConfig().GetLoginFlag()),
-		},
-	}
-
-	err = isPKCEProviderConfigValid(authFlow.ProviderConfig)
-	if err != nil {
-		return PKCEAuthorizationFlow{}, err
-	}
-
-	return authFlow, nil
-}
-
-func isPKCEProviderConfigValid(config PKCEAuthProviderConfig) error {
-	errorMSGFormat := "invalid provider configuration received from management: %s value is empty. Contact your NetBird administrator"
-	if config.ClientID == "" {
-		return fmt.Errorf(errorMSGFormat, "Client ID")
-	}
-	if config.TokenEndpoint == "" {
-		return fmt.Errorf(errorMSGFormat, "Token Endpoint")
-	}
-	if config.AuthorizationEndpoint == "" {
-		return fmt.Errorf(errorMSGFormat, "Authorization Auth Endpoint")
-	}
-	if config.Scope == "" {
-		return fmt.Errorf(errorMSGFormat, "PKCE Auth Scopes")
-	}
-	if config.RedirectURLs == nil {
-		return fmt.Errorf(errorMSGFormat, "PKCE Redirect URLs")
-	}
-	return nil
-}

client/internal/routemanager/manager.go

@@ -173,12 +173,21 @@ func (m *DefaultManager) setupAndroidRoutes(config ManagerConfig) {
 }
 
 func (m *DefaultManager) setupRefCounters(useNoop bool) {
+	var once sync.Once
+	var wgIface *net.Interface
+	toInterface := func() *net.Interface {
+		once.Do(func() {
+			wgIface = m.wgInterface.ToInterface()
+		})
+		return wgIface
+	}
+
 	m.routeRefCounter = refcounter.New(
 		func(prefix netip.Prefix, _ struct{}) (struct{}, error) {
-			return struct{}{}, m.sysOps.AddVPNRoute(prefix, m.wgInterface.ToInterface())
+			return struct{}{}, m.sysOps.AddVPNRoute(prefix, toInterface())
 		},
 		func(prefix netip.Prefix, _ struct{}) error {
-			return m.sysOps.RemoveVPNRoute(prefix, m.wgInterface.ToInterface())
+			return m.sysOps.RemoveVPNRoute(prefix, toInterface())
 		},
 	)
 
@@ -337,6 +346,13 @@ func (m *DefaultManager) updateSystemRoutes(newRoutes route.HAMap) error {
 	}
 
 	var merr *multierror.Error
+
+	// Begin batch mode to avoid calling applyHostConfig() after each DNS handler operation
+	if m.dnsServer != nil {
+		m.dnsServer.BeginBatch()
+		defer m.dnsServer.EndBatch()
+	}
+
 	for id, handler := range toRemove {
 		if err := handler.RemoveRoute(); err != nil {
 			merr = multierror.Append(merr, fmt.Errorf("remove route %s: %w", handler.String(), err))

client/internal/wg_iface_monitor.go

@@ -9,6 +9,8 @@ import (
 	"time"
 
 	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/iface/netstack"
 )
 
 // WGIfaceMonitor monitors the WireGuard interface lifecycle and restarts the engine
@@ -35,6 +37,11 @@ func (m *WGIfaceMonitor) Start(ctx context.Context, ifaceName string) (shouldRes
 		return false, errors.New("not supported on mobile platforms")
 	}
 
+	if netstack.IsEnabled() {
+		log.Debugf("Interface monitor: skipped in netstack mode")
+		return false, nil
+	}
+
 	if ifaceName == "" {
 		log.Debugf("Interface monitor: empty interface name, skipping monitor")
 		return false, errors.New("empty interface name")

client/ios/NetBirdSDK/client.go

@@ -263,7 +263,14 @@ func (c *Client) IsLoginRequired() bool {
 		return true
 	}
 
-	needsLogin, err := internal.IsLoginRequired(ctx, cfg)
+	authClient, err := auth.NewAuth(ctx, cfg.PrivateKey, cfg.ManagementURL, cfg)
+	if err != nil {
+		log.Errorf("IsLoginRequired: failed to create auth client: %v", err)
+		return true // Assume login is required if we can't create auth client
+	}
+	defer authClient.Close()
+
+	needsLogin, err := authClient.IsLoginRequired(ctx)
 	if err != nil {
 		log.Errorf("IsLoginRequired: check failed: %v", err)
 		// If the check fails, assume login is required to be safe
@@ -314,16 +321,19 @@ func (c *Client) LoginForMobile() string {
 
 	// This could cause a potential race condition with loading the extension which need to be handled on swift side
 	go func() {
-		waitTimeout := time.Duration(flowInfo.ExpiresIn) * time.Second
-		waitCTX, cancel := context.WithTimeout(ctx, waitTimeout)
-		defer cancel()
-		tokenInfo, err := oAuthFlow.WaitToken(waitCTX, flowInfo)
+		tokenInfo, err := oAuthFlow.WaitToken(ctx, flowInfo)
 		if err != nil {
 			log.Errorf("LoginForMobile: WaitToken failed: %v", err)
 			return
 		}
 		jwtToken := tokenInfo.GetTokenToUse()
-		if err := internal.Login(ctx, cfg, "", jwtToken); err != nil {
+		authClient, err := auth.NewAuth(ctx, cfg.PrivateKey, cfg.ManagementURL, cfg)
+		if err != nil {
+			log.Errorf("LoginForMobile: failed to create auth client: %v", err)
+			return
+		}
+		defer authClient.Close()
+		if err, _ := authClient.Login(ctx, "", jwtToken); err != nil {
 			log.Errorf("LoginForMobile: Login failed: %v", err)
 			return
 		}

client/ios/NetBirdSDK/login.go

@@ -7,13 +7,8 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/cenkalti/backoff/v4"
 	log "github.com/sirupsen/logrus"
-	"google.golang.org/grpc/codes"
-	gstatus "google.golang.org/grpc/status"
 
-	"github.com/netbirdio/netbird/client/cmd"
-	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/client/internal/auth"
 	"github.com/netbirdio/netbird/client/internal/profilemanager"
 	"github.com/netbirdio/netbird/client/system"
@@ -90,34 +85,21 @@ func (a *Auth) SaveConfigIfSSOSupported(listener SSOListener) {
 }
 
 func (a *Auth) saveConfigIfSSOSupported() (bool, error) {
-	supportsSSO := true
-	err := a.withBackOff(a.ctx, func() (err error) {
-		_, err = internal.GetPKCEAuthorizationFlowInfo(a.ctx, a.config.PrivateKey, a.config.ManagementURL, nil)
-		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.NotFound || s.Code() == codes.Unimplemented) {
-			_, err = internal.GetDeviceAuthorizationFlowInfo(a.ctx, a.config.PrivateKey, a.config.ManagementURL)
-			s, ok := gstatus.FromError(err)
-			if !ok {
-				return err
-			}
-			if s.Code() == codes.NotFound || s.Code() == codes.Unimplemented {
-				supportsSSO = false
-				err = nil
-			}
+	authClient, err := auth.NewAuth(a.ctx, a.config.PrivateKey, a.config.ManagementURL, a.config)
+	if err != nil {
+		return false, fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
 
-			return err
-		}
-
-		return err
-	})
+	supportsSSO, err := authClient.IsSSOSupported(a.ctx)
+	if err != nil {
+		return false, fmt.Errorf("failed to check SSO support: %v", err)
+	}
 
 	if !supportsSSO {
 		return false, nil
 	}
 
-	if err != nil {
-		return false, fmt.Errorf("backoff cycle failed: %v", err)
-	}
-
 	// Use DirectWriteOutConfig to avoid atomic file operations (temp file + rename)
 	// which are blocked by the tvOS sandbox in App Group containers
 	err = profilemanager.DirectWriteOutConfig(a.cfgPath, a.config)
@@ -141,19 +123,17 @@ func (a *Auth) LoginWithSetupKeyAndSaveConfig(resultListener ErrListener, setupK
 }
 
 func (a *Auth) loginWithSetupKeyAndSaveConfig(setupKey string, deviceName string) error {
+	authClient, err := auth.NewAuth(a.ctx, a.config.PrivateKey, a.config.ManagementURL, a.config)
+	if err != nil {
+		return fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
+
 	//nolint
 	ctxWithValues := context.WithValue(a.ctx, system.DeviceNameCtxKey, deviceName)
-
-	err := a.withBackOff(a.ctx, func() error {
-		backoffErr := internal.Login(ctxWithValues, a.config, setupKey, "")
-		if s, ok := gstatus.FromError(backoffErr); ok && (s.Code() == codes.PermissionDenied) {
-			// we got an answer from management, exit backoff earlier
-			return backoff.Permanent(backoffErr)
-		}
-		return backoffErr
-	})
+	err, _ = authClient.Login(ctxWithValues, setupKey, "")
 	if err != nil {
-		return fmt.Errorf("backoff cycle failed: %v", err)
+		return fmt.Errorf("login failed: %v", err)
 	}
 
 	// Use DirectWriteOutConfig to avoid atomic file operations (temp file + rename)
@@ -164,15 +144,16 @@ func (a *Auth) loginWithSetupKeyAndSaveConfig(setupKey string, deviceName string
 // LoginSync performs a synchronous login check without UI interaction
 // Used for background VPN connection where user should already be authenticated
 func (a *Auth) LoginSync() error {
-	var needsLogin bool
+	authClient, err := auth.NewAuth(a.ctx, a.config.PrivateKey, a.config.ManagementURL, a.config)
+	if err != nil {
+		return fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
 
 	// check if we need to generate JWT token
-	err := a.withBackOff(a.ctx, func() (err error) {
-		needsLogin, err = internal.IsLoginRequired(a.ctx, a.config)
-		return
-	})
+	needsLogin, err := authClient.IsLoginRequired(a.ctx)
 	if err != nil {
-		return fmt.Errorf("backoff cycle failed: %v", err)
+		return fmt.Errorf("failed to check login requirement: %v", err)
 	}
 
 	jwtToken := ""
@@ -180,15 +161,12 @@ func (a *Auth) LoginSync() error {
 		return fmt.Errorf("not authenticated")
 	}
 
-	err = a.withBackOff(a.ctx, func() error {
-		err := internal.Login(a.ctx, a.config, "", jwtToken)
-		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.PermissionDenied) {
-			// PermissionDenied means registration is required or peer is blocked
-			return backoff.Permanent(err)
-		}
-		return err
-	})
+	err, isAuthError := authClient.Login(a.ctx, "", jwtToken)
 	if err != nil {
+		if isAuthError {
+			// PermissionDenied means registration is required or peer is blocked
+			return fmt.Errorf("authentication error: %v", err)
+		}
 		return fmt.Errorf("login failed: %v", err)
 	}
 
@@ -225,8 +203,6 @@ func (a *Auth) LoginWithDeviceName(resultListener ErrListener, urlOpener URLOpen
 }
 
 func (a *Auth) login(urlOpener URLOpener, forceDeviceAuth bool, deviceName string) error {
-	var needsLogin bool
-
 	// Create context with device name if provided
 	ctx := a.ctx
 	if deviceName != "" {
@@ -234,33 +210,33 @@ func (a *Auth) login(urlOpener URLOpener, forceDeviceAuth bool, deviceName strin
 		ctx = context.WithValue(a.ctx, system.DeviceNameCtxKey, deviceName)
 	}
 
-	// check if we need to generate JWT token
-	err := a.withBackOff(ctx, func() (err error) {
-		needsLogin, err = internal.IsLoginRequired(ctx, a.config)
-		return
-	})
+	authClient, err := auth.NewAuth(ctx, a.config.PrivateKey, a.config.ManagementURL, a.config)
 	if err != nil {
-		return fmt.Errorf("backoff cycle failed: %v", err)
+		return fmt.Errorf("failed to create auth client: %v", err)
+	}
+	defer authClient.Close()
+
+	// check if we need to generate JWT token
+	needsLogin, err := authClient.IsLoginRequired(ctx)
+	if err != nil {
+		return fmt.Errorf("failed to check login requirement: %v", err)
 	}
 
 	jwtToken := ""
 	if needsLogin {
-		tokenInfo, err := a.foregroundGetTokenInfo(urlOpener, forceDeviceAuth)
+		tokenInfo, err := a.foregroundGetTokenInfo(authClient, urlOpener, forceDeviceAuth)
 		if err != nil {
 			return fmt.Errorf("interactive sso login failed: %v", err)
 		}
 		jwtToken = tokenInfo.GetTokenToUse()
 	}
 
-	err = a.withBackOff(ctx, func() error {
-		err := internal.Login(ctx, a.config, "", jwtToken)
-		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.PermissionDenied) {
-			// PermissionDenied means registration is required or peer is blocked
-			return backoff.Permanent(err)
-		}
-		return err
-	})
+	err, isAuthError := authClient.Login(ctx, "", jwtToken)
 	if err != nil {
+		if isAuthError {
+			// PermissionDenied means registration is required or peer is blocked
+			return fmt.Errorf("authentication error: %v", err)
+		}
 		return fmt.Errorf("login failed: %v", err)
 	}
 
@@ -285,10 +261,10 @@ func (a *Auth) login(urlOpener URLOpener, forceDeviceAuth bool, deviceName strin
 
 const authInfoRequestTimeout = 30 * time.Second
 
-func (a *Auth) foregroundGetTokenInfo(urlOpener URLOpener, forceDeviceAuth bool) (*auth.TokenInfo, error) {
-	oAuthFlow, err := auth.NewOAuthFlow(a.ctx, a.config, false, forceDeviceAuth, "")
+func (a *Auth) foregroundGetTokenInfo(authClient *auth.Auth, urlOpener URLOpener, forceDeviceAuth bool) (*auth.TokenInfo, error) {
+	oAuthFlow, err := authClient.GetOAuthFlow(a.ctx, forceDeviceAuth)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("failed to get OAuth flow: %v", err)
 	}
 
 	// Use a bounded timeout for the auth info request to prevent indefinite hangs
@@ -313,15 +289,6 @@ func (a *Auth) foregroundGetTokenInfo(urlOpener URLOpener, forceDeviceAuth bool)
 	return &tokenInfo, nil
 }
 
-func (a *Auth) withBackOff(ctx context.Context, bf func() error) error {
-	return backoff.RetryNotify(
-		bf,
-		backoff.WithContext(cmd.CLIBackOffSettings, ctx),
-		func(err error, duration time.Duration) {
-			log.Warnf("retrying Login to the Management service in %v due to error %v", duration, err)
-		})
-}
-
 // GetConfigJSON returns the current config as a JSON string.
 // This can be used by the caller to persist the config via alternative storage
 // mechanisms (e.g., UserDefaults on tvOS where file writes are blocked).

client/server/server.go

@@ -253,10 +253,17 @@ func (s *Server) connectWithRetryRuns(ctx context.Context, profileConfig *profil
 
 // loginAttempt attempts to login using the provided information. it returns a status in case something fails
 func (s *Server) loginAttempt(ctx context.Context, setupKey, jwtToken string) (internal.StatusType, error) {
-	var status internal.StatusType
-	err := internal.Login(ctx, s.config, setupKey, jwtToken)
+	authClient, err := auth.NewAuth(ctx, s.config.PrivateKey, s.config.ManagementURL, s.config)
 	if err != nil {
-		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.InvalidArgument || s.Code() == codes.PermissionDenied) {
+		log.Errorf("failed to create auth client: %v", err)
+		return internal.StatusLoginFailed, err
+	}
+	defer authClient.Close()
+
+	var status internal.StatusType
+	err, isAuthError := authClient.Login(ctx, setupKey, jwtToken)
+	if err != nil {
+		if isAuthError {
 			log.Warnf("failed login: %v", err)
 			status = internal.StatusNeedsLogin
 		} else {
@@ -581,8 +588,7 @@ func (s *Server) WaitSSOLogin(callerCtx context.Context, msg *proto.WaitSSOLogin
 		s.oauthAuthFlow.waitCancel()
 	}
 
-	waitTimeout := time.Until(s.oauthAuthFlow.expiresAt)
-	waitCTX, cancel := context.WithTimeout(ctx, waitTimeout)
+	waitCTX, cancel := context.WithCancel(ctx)
 	defer cancel()
 
 	s.mutex.Lock()

client/ssh/proxy/proxy.go

@@ -207,8 +207,6 @@ func (p *SSHProxy) handleProxyExitCode(session ssh.Session, err error) {
 }
 
 func (p *SSHProxy) handleNonInteractiveSession(session ssh.Session, sshClient *cryptossh.Client) {
-	// Create a backend session to mirror the client's session request.
-	// This keeps the connection alive on the server side while port forwarding channels operate.
 	serverSession, err := sshClient.NewSession()
 	if err != nil {
 		_, _ = fmt.Fprintf(p.stderr, "create server session: %v\n", err)
@@ -216,10 +214,28 @@ func (p *SSHProxy) handleNonInteractiveSession(session ssh.Session, sshClient *c
 	}
 	defer func() { _ = serverSession.Close() }()
 
-	<-session.Context().Done()
+	serverSession.Stdin = session
+	serverSession.Stdout = session
+	serverSession.Stderr = session.Stderr()
 
-	if err := session.Exit(0); err != nil {
-		log.Debugf("session exit: %v", err)
+	if err := serverSession.Shell(); err != nil {
+		log.Debugf("start shell: %v", err)
+		return
+	}
+
+	done := make(chan error, 1)
+	go func() {
+		done <- serverSession.Wait()
+	}()
+
+	select {
+	case <-session.Context().Done():
+		return
+	case err := <-done:
+		if err != nil {
+			log.Debugf("shell session: %v", err)
+			p.handleProxyExitCode(session, err)
+		}
 	}
 }
 

client/ssh/server/command_execution.go

@@ -12,8 +12,8 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-// handleCommand executes an SSH command with privilege validation
-func (s *Server) handleCommand(logger *log.Entry, session ssh.Session, privilegeResult PrivilegeCheckResult, winCh <-chan ssh.Window) {
+// handleExecution executes an SSH command or shell with privilege validation
+func (s *Server) handleExecution(logger *log.Entry, session ssh.Session, privilegeResult PrivilegeCheckResult, ptyReq ssh.Pty, winCh <-chan ssh.Window) {
 	hasPty := winCh != nil
 
 	commandType := "command"
@@ -23,7 +23,7 @@ func (s *Server) handleCommand(logger *log.Entry, session ssh.Session, privilege
 
 	logger.Infof("executing %s: %s", commandType, safeLogCommand(session.Command()))
 
-	execCmd, cleanup, err := s.createCommand(privilegeResult, session, hasPty)
+	execCmd, cleanup, err := s.createCommand(logger, privilegeResult, session, hasPty)
 	if err != nil {
 		logger.Errorf("%s creation failed: %v", commandType, err)
 
@@ -51,13 +51,12 @@ func (s *Server) handleCommand(logger *log.Entry, session ssh.Session, privilege
 
 	defer cleanup()
 
-	ptyReq, _, _ := session.Pty()
 	if s.executeCommandWithPty(logger, session, execCmd, privilegeResult, ptyReq, winCh) {
 		logger.Debugf("%s execution completed", commandType)
 	}
 }
 
-func (s *Server) createCommand(privilegeResult PrivilegeCheckResult, session ssh.Session, hasPty bool) (*exec.Cmd, func(), error) {
+func (s *Server) createCommand(logger *log.Entry, privilegeResult PrivilegeCheckResult, session ssh.Session, hasPty bool) (*exec.Cmd, func(), error) {
 	localUser := privilegeResult.User
 	if localUser == nil {
 		return nil, nil, errors.New("no user in privilege result")
@@ -66,28 +65,28 @@ func (s *Server) createCommand(privilegeResult PrivilegeCheckResult, session ssh
 	// If PTY requested but su doesn't support --pty, skip su and use executor
 	// This ensures PTY functionality is provided (executor runs within our allocated PTY)
 	if hasPty && !s.suSupportsPty {
-		log.Debugf("PTY requested but su doesn't support --pty, using executor for PTY functionality")
-		cmd, cleanup, err := s.createExecutorCommand(session, localUser, hasPty)
+		logger.Debugf("PTY requested but su doesn't support --pty, using executor for PTY functionality")
+		cmd, cleanup, err := s.createExecutorCommand(logger, session, localUser, hasPty)
 		if err != nil {
 			return nil, nil, fmt.Errorf("create command with privileges: %w", err)
 		}
-		cmd.Env = s.prepareCommandEnv(localUser, session)
+		cmd.Env = s.prepareCommandEnv(logger, localUser, session)
 		return cmd, cleanup, nil
 	}
 
 	// Try su first for system integration (PAM/audit) when privileged
-	cmd, err := s.createSuCommand(session, localUser, hasPty)
+	cmd, err := s.createSuCommand(logger, session, localUser, hasPty)
 	if err != nil || privilegeResult.UsedFallback {
-		log.Debugf("su command failed, falling back to executor: %v", err)
-		cmd, cleanup, err := s.createExecutorCommand(session, localUser, hasPty)
+		logger.Debugf("su command failed, falling back to executor: %v", err)
+		cmd, cleanup, err := s.createExecutorCommand(logger, session, localUser, hasPty)
 		if err != nil {
 			return nil, nil, fmt.Errorf("create command with privileges: %w", err)
 		}
-		cmd.Env = s.prepareCommandEnv(localUser, session)
+		cmd.Env = s.prepareCommandEnv(logger, localUser, session)
 		return cmd, cleanup, nil
 	}
 
-	cmd.Env = s.prepareCommandEnv(localUser, session)
+	cmd.Env = s.prepareCommandEnv(logger, localUser, session)
 	return cmd, func() {}, nil
 }
 

client/ssh/server/command_execution_js.go

@@ -15,17 +15,17 @@ import (
 var errNotSupported = errors.New("SSH server command execution not supported on WASM/JS platform")
 
 // createSuCommand is not supported on JS/WASM
-func (s *Server) createSuCommand(_ ssh.Session, _ *user.User, _ bool) (*exec.Cmd, error) {
+func (s *Server) createSuCommand(_ *log.Entry, _ ssh.Session, _ *user.User, _ bool) (*exec.Cmd, error) {
 	return nil, errNotSupported
 }
 
 // createExecutorCommand is not supported on JS/WASM
-func (s *Server) createExecutorCommand(_ ssh.Session, _ *user.User, _ bool) (*exec.Cmd, func(), error) {
+func (s *Server) createExecutorCommand(_ *log.Entry, _ ssh.Session, _ *user.User, _ bool) (*exec.Cmd, func(), error) {
 	return nil, nil, errNotSupported
 }
 
 // prepareCommandEnv is not supported on JS/WASM
-func (s *Server) prepareCommandEnv(_ *user.User, _ ssh.Session) []string {
+func (s *Server) prepareCommandEnv(_ *log.Entry, _ *user.User, _ ssh.Session) []string {
 	return nil
 }
 

client/ssh/server/command_execution_unix.go

@@ -10,6 +10,7 @@ import (
 	"os"
 	"os/exec"
 	"os/user"
+	"path/filepath"
 	"runtime"
 	"strings"
 	"sync"
@@ -99,40 +100,52 @@ func (s *Server) detectUtilLinuxLogin(ctx context.Context) bool {
 	return isUtilLinux
 }
 
-// createSuCommand creates a command using su -l -c for privilege switching
-func (s *Server) createSuCommand(session ssh.Session, localUser *user.User, hasPty bool) (*exec.Cmd, error) {
+// createSuCommand creates a command using su - for privilege switching.
+func (s *Server) createSuCommand(logger *log.Entry, session ssh.Session, localUser *user.User, hasPty bool) (*exec.Cmd, error) {
+	if err := validateUsername(localUser.Username); err != nil {
+		return nil, fmt.Errorf("invalid username %q: %w", localUser.Username, err)
+	}
+
 	suPath, err := exec.LookPath("su")
 	if err != nil {
 		return nil, fmt.Errorf("su command not available: %w", err)
 	}
 
-	command := session.RawCommand()
-	if command == "" {
-		return nil, fmt.Errorf("no command specified for su execution")
-	}
-
-	args := []string{"-l"}
+	args := []string{"-"}
 	if hasPty && s.suSupportsPty {
 		args = append(args, "--pty")
 	}
-	args = append(args, localUser.Username, "-c", command)
+	args = append(args, localUser.Username)
 
+	command := session.RawCommand()
+	if command != "" {
+		args = append(args, "-c", command)
+	}
+
+	logger.Debugf("creating su command: %s %v", suPath, args)
 	cmd := exec.CommandContext(session.Context(), suPath, args...)
 	cmd.Dir = localUser.HomeDir
 
 	return cmd, nil
 }
 
-// getShellCommandArgs returns the shell command and arguments for executing a command string
+// getShellCommandArgs returns the shell command and arguments for executing a command string.
 func (s *Server) getShellCommandArgs(shell, cmdString string) []string {
 	if cmdString == "" {
-		return []string{shell, "-l"}
+		return []string{shell}
 	}
-	return []string{shell, "-l", "-c", cmdString}
+	return []string{shell, "-c", cmdString}
+}
+
+// createShellCommand creates an exec.Cmd configured as a login shell by setting argv[0] to "-shellname".
+func (s *Server) createShellCommand(ctx context.Context, shell string, args []string) *exec.Cmd {
+	cmd := exec.CommandContext(ctx, shell, args[1:]...)
+	cmd.Args[0] = "-" + filepath.Base(shell)
+	return cmd
 }
 
 // prepareCommandEnv prepares environment variables for command execution on Unix
-func (s *Server) prepareCommandEnv(localUser *user.User, session ssh.Session) []string {
+func (s *Server) prepareCommandEnv(_ *log.Entry, localUser *user.User, session ssh.Session) []string {
 	env := prepareUserEnv(localUser, getUserShell(localUser.Uid))
 	env = append(env, prepareSSHEnv(session)...)
 	for _, v := range session.Environ() {
@@ -154,7 +167,7 @@ func (s *Server) executeCommandWithPty(logger *log.Entry, session ssh.Session, e
 	return s.runPtyCommand(logger, session, execCmd, ptyReq, winCh)
 }
 
-func (s *Server) handlePty(logger *log.Entry, session ssh.Session, privilegeResult PrivilegeCheckResult, ptyReq ssh.Pty, winCh <-chan ssh.Window) bool {
+func (s *Server) handlePtyLogin(logger *log.Entry, session ssh.Session, privilegeResult PrivilegeCheckResult, ptyReq ssh.Pty, winCh <-chan ssh.Window) bool {
 	execCmd, err := s.createPtyCommand(privilegeResult, ptyReq, session)
 	if err != nil {
 		logger.Errorf("Pty command creation failed: %v", err)
@@ -244,11 +257,6 @@ func (s *Server) handlePtyIO(logger *log.Entry, session ssh.Session, ptyMgr *pty
 	}()
 
 	go func() {
-		defer func() {
-			if err := session.Close(); err != nil && !errors.Is(err, io.EOF) {
-				logger.Debugf("session close error: %v", err)
-			}
-		}()
 		if _, err := io.Copy(session, ptmx); err != nil {
 			if !errors.Is(err, io.EOF) && !errors.Is(err, syscall.EIO) {
 				logger.Warnf("Pty output copy error: %v", err)
@@ -268,7 +276,7 @@ func (s *Server) waitForPtyCompletion(logger *log.Entry, session ssh.Session, ex
 	case <-ctx.Done():
 		s.handlePtySessionCancellation(logger, session, execCmd, ptyMgr, done)
 	case err := <-done:
-		s.handlePtyCommandCompletion(logger, session, err)
+		s.handlePtyCommandCompletion(logger, session, ptyMgr, err)
 	}
 }
 
@@ -296,17 +304,20 @@ func (s *Server) handlePtySessionCancellation(logger *log.Entry, session ssh.Ses
 	}
 }
 
-func (s *Server) handlePtyCommandCompletion(logger *log.Entry, session ssh.Session, err error) {
+func (s *Server) handlePtyCommandCompletion(logger *log.Entry, session ssh.Session, ptyMgr *ptyManager, err error) {
 	if err != nil {
 		logger.Debugf("Pty command execution failed: %v", err)
 		s.handleSessionExit(session, err, logger)
-		return
+	} else {
+		logger.Debugf("Pty command completed successfully")
+		if err := session.Exit(0); err != nil {
+			logSessionExitError(logger, err)
+		}
 	}
 
-	// Normal completion
-	logger.Debugf("Pty command completed successfully")
-	if err := session.Exit(0); err != nil {
-		logSessionExitError(logger, err)
+	// Close PTY to unblock io.Copy goroutines
+	if err := ptyMgr.Close(); err != nil {
+		logger.Debugf("Pty close after completion: %v", err)
 	}
 }
 

client/ssh/server/command_execution_windows.go

@@ -20,32 +20,32 @@ import (
 
 // getUserEnvironment retrieves the Windows environment for the target user.
 // Follows OpenSSH's resilient approach with graceful degradation on failures.
-func (s *Server) getUserEnvironment(username, domain string) ([]string, error) {
-	userToken, err := s.getUserToken(username, domain)
+func (s *Server) getUserEnvironment(logger *log.Entry, username, domain string) ([]string, error) {
+	userToken, err := s.getUserToken(logger, username, domain)
 	if err != nil {
 		return nil, fmt.Errorf("get user token: %w", err)
 	}
 	defer func() {
 		if err := windows.CloseHandle(userToken); err != nil {
-			log.Debugf("close user token: %v", err)
+			logger.Debugf("close user token: %v", err)
 		}
 	}()
 
-	return s.getUserEnvironmentWithToken(userToken, username, domain)
+	return s.getUserEnvironmentWithToken(logger, userToken, username, domain)
 }
 
 // getUserEnvironmentWithToken retrieves the Windows environment using an existing token.
-func (s *Server) getUserEnvironmentWithToken(userToken windows.Handle, username, domain string) ([]string, error) {
+func (s *Server) getUserEnvironmentWithToken(logger *log.Entry, userToken windows.Handle, username, domain string) ([]string, error) {
 	userProfile, err := s.loadUserProfile(userToken, username, domain)
 	if err != nil {
-		log.Debugf("failed to load user profile for %s\\%s: %v", domain, username, err)
+		logger.Debugf("failed to load user profile for %s\\%s: %v", domain, username, err)
 		userProfile = fmt.Sprintf("C:\\Users\\%s", username)
 	}
 
 	envMap := make(map[string]string)
 
 	if err := s.loadSystemEnvironment(envMap); err != nil {
-		log.Debugf("failed to load system environment from registry: %v", err)
+		logger.Debugf("failed to load system environment from registry: %v", err)
 	}
 
 	s.setUserEnvironmentVariables(envMap, userProfile, username, domain)
@@ -59,8 +59,8 @@ func (s *Server) getUserEnvironmentWithToken(userToken windows.Handle, username,
 }
 
 // getUserToken creates a user token for the specified user.
-func (s *Server) getUserToken(username, domain string) (windows.Handle, error) {
-	privilegeDropper := NewPrivilegeDropper()
+func (s *Server) getUserToken(logger *log.Entry, username, domain string) (windows.Handle, error) {
+	privilegeDropper := NewPrivilegeDropper(WithLogger(logger))
 	token, err := privilegeDropper.createToken(username, domain)
 	if err != nil {
 		return 0, fmt.Errorf("generate S4U user token: %w", err)
@@ -242,9 +242,9 @@ func (s *Server) setUserEnvironmentVariables(envMap map[string]string, userProfi
 }
 
 // prepareCommandEnv prepares environment variables for command execution on Windows
-func (s *Server) prepareCommandEnv(localUser *user.User, session ssh.Session) []string {
+func (s *Server) prepareCommandEnv(logger *log.Entry, localUser *user.User, session ssh.Session) []string {
 	username, domain := s.parseUsername(localUser.Username)
-	userEnv, err := s.getUserEnvironment(username, domain)
+	userEnv, err := s.getUserEnvironment(logger, username, domain)
 	if err != nil {
 		log.Debugf("failed to get user environment for %s\\%s, using fallback: %v", domain, username, err)
 		env := prepareUserEnv(localUser, getUserShell(localUser.Uid))
@@ -267,22 +267,16 @@ func (s *Server) prepareCommandEnv(localUser *user.User, session ssh.Session) []
 	return env
 }
 
-func (s *Server) handlePty(logger *log.Entry, session ssh.Session, privilegeResult PrivilegeCheckResult, ptyReq ssh.Pty, winCh <-chan ssh.Window) bool {
+func (s *Server) handlePtyLogin(logger *log.Entry, session ssh.Session, privilegeResult PrivilegeCheckResult, ptyReq ssh.Pty, _ <-chan ssh.Window) bool {
 	if privilegeResult.User == nil {
 		logger.Errorf("no user in privilege result")
 		return false
 	}
 
-	cmd := session.Command()
 	shell := getUserShell(privilegeResult.User.Uid)
+	logger.Infof("starting interactive shell: %s", shell)
 
-	if len(cmd) == 0 {
-		logger.Infof("starting interactive shell: %s", shell)
-	} else {
-		logger.Infof("executing command: %s", safeLogCommand(cmd))
-	}
-
-	s.handlePtyWithUserSwitching(logger, session, privilegeResult, ptyReq, winCh, cmd)
+	s.executeCommandWithPty(logger, session, nil, privilegeResult, ptyReq, nil)
 	return true
 }
 
@@ -294,11 +288,6 @@ func (s *Server) getShellCommandArgs(shell, cmdString string) []string {
 	return []string{shell, "-Command", cmdString}
 }
 
-func (s *Server) handlePtyWithUserSwitching(logger *log.Entry, session ssh.Session, privilegeResult PrivilegeCheckResult, ptyReq ssh.Pty, _ <-chan ssh.Window, _ []string) {
-	logger.Info("starting interactive shell")
-	s.executeConPtyCommand(logger, session, privilegeResult, ptyReq, session.RawCommand())
-}
-
 type PtyExecutionRequest struct {
 	Shell    string
 	Command  string
@@ -308,25 +297,25 @@ type PtyExecutionRequest struct {
 	Domain   string
 }
 
-func executePtyCommandWithUserToken(ctx context.Context, session ssh.Session, req PtyExecutionRequest) error {
-	log.Tracef("executing Windows ConPty command with user switching: shell=%s, command=%s, user=%s\\%s, size=%dx%d",
+func executePtyCommandWithUserToken(logger *log.Entry, session ssh.Session, req PtyExecutionRequest) error {
+	logger.Tracef("executing Windows ConPty command with user switching: shell=%s, command=%s, user=%s\\%s, size=%dx%d",
 		req.Shell, req.Command, req.Domain, req.Username, req.Width, req.Height)
 
-	privilegeDropper := NewPrivilegeDropper()
+	privilegeDropper := NewPrivilegeDropper(WithLogger(logger))
 	userToken, err := privilegeDropper.createToken(req.Username, req.Domain)
 	if err != nil {
 		return fmt.Errorf("create user token: %w", err)
 	}
 	defer func() {
 		if err := windows.CloseHandle(userToken); err != nil {
-			log.Debugf("close user token: %v", err)
+			logger.Debugf("close user token: %v", err)
 		}
 	}()
 
 	server := &Server{}
-	userEnv, err := server.getUserEnvironmentWithToken(userToken, req.Username, req.Domain)
+	userEnv, err := server.getUserEnvironmentWithToken(logger, userToken, req.Username, req.Domain)
 	if err != nil {
-		log.Debugf("failed to get user environment for %s\\%s, using system environment: %v", req.Domain, req.Username, err)
+		logger.Debugf("failed to get user environment for %s\\%s, using system environment: %v", req.Domain, req.Username, err)
 		userEnv = os.Environ()
 	}
 
@@ -348,8 +337,8 @@ func executePtyCommandWithUserToken(ctx context.Context, session ssh.Session, re
 		Environment: userEnv,
 	}
 
-	log.Debugf("executePtyCommandWithUserToken: calling winpty execution with working dir: %s", workingDir)
-	return winpty.ExecutePtyWithUserToken(ctx, session, ptyConfig, userConfig)
+	logger.Debugf("executePtyCommandWithUserToken: calling winpty execution with working dir: %s", workingDir)
+	return winpty.ExecutePtyWithUserToken(session, ptyConfig, userConfig)
 }
 
 func getUserHomeFromEnv(env []string) string {
@@ -371,10 +360,8 @@ func (s *Server) killProcessGroup(cmd *exec.Cmd) {
 		return
 	}
 
-	logger := log.WithField("pid", cmd.Process.Pid)
-
 	if err := cmd.Process.Kill(); err != nil {
-		logger.Debugf("kill process failed: %v", err)
+		log.Debugf("kill process %d failed: %v", cmd.Process.Pid, err)
 	}
 }
 
@@ -389,21 +376,7 @@ func (s *Server) detectUtilLinuxLogin(context.Context) bool {
 }
 
 // executeCommandWithPty executes a command with PTY allocation on Windows using ConPty
-func (s *Server) executeCommandWithPty(logger *log.Entry, session ssh.Session, execCmd *exec.Cmd, privilegeResult PrivilegeCheckResult, ptyReq ssh.Pty, winCh <-chan ssh.Window) bool {
-	command := session.RawCommand()
-	if command == "" {
-		logger.Error("no command specified for PTY execution")
-		if err := session.Exit(1); err != nil {
-			logSessionExitError(logger, err)
-		}
-		return false
-	}
-
-	return s.executeConPtyCommand(logger, session, privilegeResult, ptyReq, command)
-}
-
-// executeConPtyCommand executes a command using ConPty (common for interactive and command execution)
-func (s *Server) executeConPtyCommand(logger *log.Entry, session ssh.Session, privilegeResult PrivilegeCheckResult, ptyReq ssh.Pty, command string) bool {
+func (s *Server) executeCommandWithPty(logger *log.Entry, session ssh.Session, _ *exec.Cmd, privilegeResult PrivilegeCheckResult, ptyReq ssh.Pty, _ <-chan ssh.Window) bool {
 	localUser := privilegeResult.User
 	if localUser == nil {
 		logger.Errorf("no user in privilege result")
@@ -415,14 +388,14 @@ func (s *Server) executeConPtyCommand(logger *log.Entry, session ssh.Session, pr
 
 	req := PtyExecutionRequest{
 		Shell:    shell,
-		Command:  command,
+		Command:  session.RawCommand(),
 		Width:    ptyReq.Window.Width,
 		Height:   ptyReq.Window.Height,
 		Username: username,
 		Domain:   domain,
 	}
 
-	if err := executePtyCommandWithUserToken(session.Context(), session, req); err != nil {
+	if err := executePtyCommandWithUserToken(logger, session, req); err != nil {
 		logger.Errorf("ConPty execution failed: %v", err)
 		if err := session.Exit(1); err != nil {
 			logSessionExitError(logger, err)

client/ssh/server/compatibility_test.go

@@ -4,12 +4,15 @@ import (
 	"context"
 	"crypto/ed25519"
 	"crypto/rand"
+	"errors"
 	"fmt"
 	"io"
 	"net"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"runtime"
+	"slices"
 	"strings"
 	"testing"
 	"time"
@@ -23,25 +26,67 @@ import (
 	"github.com/netbirdio/netbird/client/ssh/testutil"
 )
 
-// TestMain handles package-level setup and cleanup
 func TestMain(m *testing.M) {
-	// Guard against infinite recursion when test binary is called as "netbird ssh exec"
-	// This happens when running tests as non-privileged user with fallback
+	// On platforms where su doesn't support --pty (macOS, FreeBSD, Windows), the SSH server
+	// spawns an executor subprocess via os.Executable(). During tests, this invokes the test
+	// binary with "ssh exec" args. We handle that here to properly execute commands and
+	// propagate exit codes.
 	if len(os.Args) > 2 && os.Args[1] == "ssh" && os.Args[2] == "exec" {
-		// Just exit with error to break the recursion
-		fmt.Fprintf(os.Stderr, "Test binary called as 'ssh exec' - preventing infinite recursion\n")
-		os.Exit(1)
+		runTestExecutor()
+		return
 	}
 
-	// Run tests
 	code := m.Run()
-
-	// Cleanup any created test users
 	testutil.CleanupTestUsers()
-
 	os.Exit(code)
 }
 
+// runTestExecutor emulates the netbird executor for tests.
+// Parses --shell and --cmd args, runs the command, and exits with the correct code.
+func runTestExecutor() {
+	if os.Getenv("_NETBIRD_TEST_EXECUTOR") != "" {
+		fmt.Fprintf(os.Stderr, "executor recursion detected\n")
+		os.Exit(1)
+	}
+	os.Setenv("_NETBIRD_TEST_EXECUTOR", "1")
+
+	shell := "/bin/sh"
+	var command string
+	for i := 3; i < len(os.Args); i++ {
+		switch os.Args[i] {
+		case "--shell":
+			if i+1 < len(os.Args) {
+				shell = os.Args[i+1]
+				i++
+			}
+		case "--cmd":
+			if i+1 < len(os.Args) {
+				command = os.Args[i+1]
+				i++
+			}
+		}
+	}
+
+	var cmd *exec.Cmd
+	if command == "" {
+		cmd = exec.Command(shell)
+	} else {
+		cmd = exec.Command(shell, "-c", command)
+	}
+	cmd.Args[0] = "-" + filepath.Base(shell)
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	if err := cmd.Run(); err != nil {
+		if exitErr, ok := err.(*exec.ExitError); ok {
+			os.Exit(exitErr.ExitCode())
+		}
+		os.Exit(1)
+	}
+	os.Exit(0)
+}
+
 // TestSSHServerCompatibility tests that our SSH server is compatible with the system SSH client
 func TestSSHServerCompatibility(t *testing.T) {
 	if testing.Short() {
@@ -405,6 +450,171 @@ func createTempKeyFile(t *testing.T, privateKey []byte) (string, func()) {
 	return createTempKeyFileFromBytes(t, privateKey)
 }
 
+// TestSSHPtyModes tests different PTY allocation modes (-T, -t, -tt flags)
+// This ensures our implementation matches OpenSSH behavior for:
+// - ssh host command        (no PTY - default when no TTY)
+// - ssh -T host command     (explicit no PTY)
+// - ssh -t host command     (force PTY)
+// - ssh -T host             (no PTY shell - our implementation)
+func TestSSHPtyModes(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping SSH PTY mode tests in short mode")
+	}
+
+	if !isSSHClientAvailable() {
+		t.Skip("SSH client not available on this system")
+	}
+
+	if runtime.GOOS == "windows" && testutil.IsCI() {
+		t.Skip("Skipping Windows SSH PTY tests in CI due to S4U authentication issues")
+	}
+
+	hostKey, err := nbssh.GeneratePrivateKey(nbssh.ED25519)
+	require.NoError(t, err)
+
+	clientPrivKeyOpenSSH, _, err := generateOpenSSHKey(t)
+	require.NoError(t, err)
+
+	serverConfig := &Config{
+		HostKeyPEM: hostKey,
+		JWT:        nil,
+	}
+	server := New(serverConfig)
+	server.SetAllowRootLogin(true)
+
+	serverAddr := StartTestServer(t, server)
+	defer func() {
+		err := server.Stop()
+		require.NoError(t, err)
+	}()
+
+	clientKeyFile, cleanupKey := createTempKeyFileFromBytes(t, clientPrivKeyOpenSSH)
+	defer cleanupKey()
+
+	host, portStr, err := net.SplitHostPort(serverAddr)
+	require.NoError(t, err)
+
+	username := testutil.GetTestUsername(t)
+
+	baseArgs := []string{
+		"-i", clientKeyFile,
+		"-p", portStr,
+		"-o", "StrictHostKeyChecking=no",
+		"-o", "UserKnownHostsFile=/dev/null",
+		"-o", "ConnectTimeout=5",
+		"-o", "BatchMode=yes",
+	}
+
+	t.Run("command_default_no_pty", func(t *testing.T) {
+		args := append(slices.Clone(baseArgs), fmt.Sprintf("%s@%s", username, host), "echo", "no_pty_default")
+		cmd := exec.Command("ssh", args...)
+
+		output, err := cmd.CombinedOutput()
+		require.NoError(t, err, "Command (default no PTY) failed: %s", output)
+		assert.Contains(t, string(output), "no_pty_default")
+	})
+
+	t.Run("command_explicit_no_pty", func(t *testing.T) {
+		args := append(slices.Clone(baseArgs), "-T", fmt.Sprintf("%s@%s", username, host), "echo", "explicit_no_pty")
+		cmd := exec.Command("ssh", args...)
+
+		output, err := cmd.CombinedOutput()
+		require.NoError(t, err, "Command (-T explicit no PTY) failed: %s", output)
+		assert.Contains(t, string(output), "explicit_no_pty")
+	})
+
+	t.Run("command_force_pty", func(t *testing.T) {
+		args := append(slices.Clone(baseArgs), "-tt", fmt.Sprintf("%s@%s", username, host), "echo", "force_pty")
+		cmd := exec.Command("ssh", args...)
+
+		output, err := cmd.CombinedOutput()
+		require.NoError(t, err, "Command (-tt force PTY) failed: %s", output)
+		assert.Contains(t, string(output), "force_pty")
+	})
+
+	t.Run("shell_explicit_no_pty", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+
+		args := append(slices.Clone(baseArgs), "-T", fmt.Sprintf("%s@%s", username, host))
+		cmd := exec.CommandContext(ctx, "ssh", args...)
+
+		stdin, err := cmd.StdinPipe()
+		require.NoError(t, err)
+
+		stdout, err := cmd.StdoutPipe()
+		require.NoError(t, err)
+
+		require.NoError(t, cmd.Start(), "Shell (-T no PTY) start failed")
+
+		go func() {
+			defer stdin.Close()
+			time.Sleep(100 * time.Millisecond)
+			_, err := stdin.Write([]byte("echo shell_no_pty_test\n"))
+			assert.NoError(t, err, "write echo command")
+			time.Sleep(100 * time.Millisecond)
+			_, err = stdin.Write([]byte("exit 0\n"))
+			assert.NoError(t, err, "write exit command")
+		}()
+
+		output, _ := io.ReadAll(stdout)
+		err = cmd.Wait()
+
+		require.NoError(t, err, "Shell (-T no PTY) failed: %s", output)
+		assert.Contains(t, string(output), "shell_no_pty_test")
+	})
+
+	t.Run("exit_code_preserved_no_pty", func(t *testing.T) {
+		args := append(slices.Clone(baseArgs), "-T", fmt.Sprintf("%s@%s", username, host), "exit", "42")
+		cmd := exec.Command("ssh", args...)
+
+		err := cmd.Run()
+		require.Error(t, err, "Command should exit with non-zero")
+
+		var exitErr *exec.ExitError
+		require.True(t, errors.As(err, &exitErr), "Should be an exit error: %v", err)
+		assert.Equal(t, 42, exitErr.ExitCode(), "Exit code should be preserved with -T")
+	})
+
+	t.Run("exit_code_preserved_with_pty", func(t *testing.T) {
+		args := append(slices.Clone(baseArgs), "-tt", fmt.Sprintf("%s@%s", username, host), "sh -c 'exit 43'")
+		cmd := exec.Command("ssh", args...)
+
+		err := cmd.Run()
+		require.Error(t, err, "PTY command should exit with non-zero")
+
+		var exitErr *exec.ExitError
+		require.True(t, errors.As(err, &exitErr), "Should be an exit error: %v", err)
+		assert.Equal(t, 43, exitErr.ExitCode(), "Exit code should be preserved with -tt")
+	})
+
+	t.Run("stderr_works_no_pty", func(t *testing.T) {
+		args := append(slices.Clone(baseArgs), "-T", fmt.Sprintf("%s@%s", username, host),
+			"sh -c 'echo stdout_msg; echo stderr_msg >&2'")
+		cmd := exec.Command("ssh", args...)
+
+		var stdout, stderr strings.Builder
+		cmd.Stdout = &stdout
+		cmd.Stderr = &stderr
+
+		require.NoError(t, cmd.Run(), "stderr test failed")
+		assert.Contains(t, stdout.String(), "stdout_msg", "stdout should have stdout_msg")
+		assert.Contains(t, stderr.String(), "stderr_msg", "stderr should have stderr_msg")
+		assert.NotContains(t, stdout.String(), "stderr_msg", "stdout should NOT have stderr_msg")
+	})
+
+	t.Run("stderr_merged_with_pty", func(t *testing.T) {
+		args := append(slices.Clone(baseArgs), "-tt", fmt.Sprintf("%s@%s", username, host),
+			"sh -c 'echo stdout_msg; echo stderr_msg >&2'")
+		cmd := exec.Command("ssh", args...)
+
+		output, err := cmd.CombinedOutput()
+		require.NoError(t, err, "PTY stderr test failed: %s", output)
+		assert.Contains(t, string(output), "stdout_msg")
+		assert.Contains(t, string(output), "stderr_msg")
+	})
+}
+
 // TestSSHServerFeatureCompatibility tests specific SSH features for compatibility
 func TestSSHServerFeatureCompatibility(t *testing.T) {
 	if testing.Short() {

client/ssh/server/executor_unix.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"runtime"
 	"strings"
 	"syscall"
@@ -35,11 +36,35 @@ type ExecutorConfig struct {
 }
 
 // PrivilegeDropper handles secure privilege dropping in child processes
-type PrivilegeDropper struct{}
+type PrivilegeDropper struct {
+	logger *log.Entry
+}
+
+// PrivilegeDropperOption is a functional option for configuring PrivilegeDropper
+type PrivilegeDropperOption func(*PrivilegeDropper)
 
 // NewPrivilegeDropper creates a new privilege dropper
-func NewPrivilegeDropper() *PrivilegeDropper {
-	return &PrivilegeDropper{}
+func NewPrivilegeDropper(opts ...PrivilegeDropperOption) *PrivilegeDropper {
+	pd := &PrivilegeDropper{}
+	for _, opt := range opts {
+		opt(pd)
+	}
+	return pd
+}
+
+// WithLogger sets the logger for the PrivilegeDropper
+func WithLogger(logger *log.Entry) PrivilegeDropperOption {
+	return func(pd *PrivilegeDropper) {
+		pd.logger = logger
+	}
+}
+
+// log returns the logger, falling back to standard logger if none set
+func (pd *PrivilegeDropper) log() *log.Entry {
+	if pd.logger != nil {
+		return pd.logger
+	}
+	return log.NewEntry(log.StandardLogger())
 }
 
 // CreateExecutorCommand creates a command that spawns netbird ssh exec for privilege dropping
@@ -83,7 +108,7 @@ func (pd *PrivilegeDropper) CreateExecutorCommand(ctx context.Context, config Ex
 			break
 		}
 	}
-	log.Tracef("creating executor command: %s %v", netbirdPath, safeArgs)
+	pd.log().Tracef("creating executor command: %s %v", netbirdPath, safeArgs)
 	return exec.CommandContext(ctx, netbirdPath, args...), nil
 }
 
@@ -206,17 +231,22 @@ func (pd *PrivilegeDropper) ExecuteWithPrivilegeDrop(ctx context.Context, config
 
 	var execCmd *exec.Cmd
 	if config.Command == "" {
-		os.Exit(ExitCodeSuccess)
+		execCmd = exec.CommandContext(ctx, config.Shell)
+	} else {
+		execCmd = exec.CommandContext(ctx, config.Shell, "-c", config.Command)
 	}
-
-	execCmd = exec.CommandContext(ctx, config.Shell, "-c", config.Command)
+	execCmd.Args[0] = "-" + filepath.Base(config.Shell)
 	execCmd.Stdin = os.Stdin
 	execCmd.Stdout = os.Stdout
 	execCmd.Stderr = os.Stderr
 
-	cmdParts := strings.Fields(config.Command)
-	safeCmd := safeLogCommand(cmdParts)
-	log.Tracef("executing %s -c %s", execCmd.Path, safeCmd)
+	if config.Command == "" {
+		log.Tracef("executing login shell: %s", execCmd.Path)
+	} else {
+		cmdParts := strings.Fields(config.Command)
+		safeCmd := safeLogCommand(cmdParts)
+		log.Tracef("executing %s -c %s", execCmd.Path, safeCmd)
+	}
 	if err := execCmd.Run(); err != nil {
 		var exitError *exec.ExitError
 		if errors.As(err, &exitError) {

client/ssh/server/executor_windows.go

@@ -28,22 +28,45 @@ const (
 )
 
 type WindowsExecutorConfig struct {
-	Username    string
-	Domain      string
-	WorkingDir  string
-	Shell       string
-	Command     string
-	Args        []string
-	Interactive bool
-	Pty         bool
-	PtyWidth    int
-	PtyHeight   int
+	Username   string
+	Domain     string
+	WorkingDir string
+	Shell      string
+	Command    string
+	Args       []string
+	Pty        bool
+	PtyWidth   int
+	PtyHeight  int
 }
 
-type PrivilegeDropper struct{}
+type PrivilegeDropper struct {
+	logger *log.Entry
+}
 
-func NewPrivilegeDropper() *PrivilegeDropper {
-	return &PrivilegeDropper{}
+// PrivilegeDropperOption is a functional option for configuring PrivilegeDropper
+type PrivilegeDropperOption func(*PrivilegeDropper)
+
+func NewPrivilegeDropper(opts ...PrivilegeDropperOption) *PrivilegeDropper {
+	pd := &PrivilegeDropper{}
+	for _, opt := range opts {
+		opt(pd)
+	}
+	return pd
+}
+
+// WithLogger sets the logger for the PrivilegeDropper
+func WithLogger(logger *log.Entry) PrivilegeDropperOption {
+	return func(pd *PrivilegeDropper) {
+		pd.logger = logger
+	}
+}
+
+// log returns the logger, falling back to standard logger if none set
+func (pd *PrivilegeDropper) log() *log.Entry {
+	if pd.logger != nil {
+		return pd.logger
+	}
+	return log.NewEntry(log.StandardLogger())
 }
 
 var (
@@ -56,7 +79,6 @@ const (
 
 	// Common error messages
 	commandFlag          = "-Command"
-	closeTokenErrorMsg   = "close token error: %v" // #nosec G101 -- This is an error message template, not credentials
 	convertUsernameError = "convert username to UTF16: %w"
 	convertDomainError   = "convert domain to UTF16: %w"
 )
@@ -80,7 +102,7 @@ func (pd *PrivilegeDropper) CreateWindowsExecutorCommand(ctx context.Context, co
 		shellArgs = []string{shell}
 	}
 
-	log.Tracef("creating Windows direct shell command: %s %v", shellArgs[0], shellArgs)
+	pd.log().Tracef("creating Windows direct shell command: %s %v", shellArgs[0], shellArgs)
 
 	cmd, token, err := pd.CreateWindowsProcessAsUser(
 		ctx, shellArgs[0], shellArgs, config.Username, config.Domain, config.WorkingDir)
@@ -180,10 +202,10 @@ func newLsaString(s string) lsaString {
 
 // generateS4UUserToken creates a Windows token using S4U authentication
 // This is the exact approach OpenSSH for Windows uses for public key authentication
-func generateS4UUserToken(username, domain string) (windows.Handle, error) {
+func generateS4UUserToken(logger *log.Entry, username, domain string) (windows.Handle, error) {
 	userCpn := buildUserCpn(username, domain)
 
-	pd := NewPrivilegeDropper()
+	pd := NewPrivilegeDropper(WithLogger(logger))
 	isDomainUser := !pd.isLocalUser(domain)
 
 	lsaHandle, err := initializeLsaConnection()
@@ -197,12 +219,12 @@ func generateS4UUserToken(username, domain string) (windows.Handle, error) {
 		return 0, err
 	}
 
-	logonInfo, logonInfoSize, err := prepareS4ULogonStructure(username, domain, isDomainUser)
+	logonInfo, logonInfoSize, err := prepareS4ULogonStructure(logger, username, domain, isDomainUser)
 	if err != nil {
 		return 0, err
 	}
 
-	return performS4ULogon(lsaHandle, authPackageId, logonInfo, logonInfoSize, userCpn, isDomainUser)
+	return performS4ULogon(logger, lsaHandle, authPackageId, logonInfo, logonInfoSize, userCpn, isDomainUser)
 }
 
 // buildUserCpn constructs the user principal name
@@ -310,21 +332,21 @@ func lookupPrincipalName(username, domain string) (string, error) {
 }
 
 // prepareS4ULogonStructure creates the appropriate S4U logon structure
-func prepareS4ULogonStructure(username, domain string, isDomainUser bool) (unsafe.Pointer, uintptr, error) {
+func prepareS4ULogonStructure(logger *log.Entry, username, domain string, isDomainUser bool) (unsafe.Pointer, uintptr, error) {
 	if isDomainUser {
-		return prepareDomainS4ULogon(username, domain)
+		return prepareDomainS4ULogon(logger, username, domain)
 	}
-	return prepareLocalS4ULogon(username)
+	return prepareLocalS4ULogon(logger, username)
 }
 
 // prepareDomainS4ULogon creates S4U logon structure for domain users
-func prepareDomainS4ULogon(username, domain string) (unsafe.Pointer, uintptr, error) {
+func prepareDomainS4ULogon(logger *log.Entry, username, domain string) (unsafe.Pointer, uintptr, error) {
 	upn, err := lookupPrincipalName(username, domain)
 	if err != nil {
 		return nil, 0, fmt.Errorf("lookup principal name: %w", err)
 	}
 
-	log.Debugf("using KerbS4ULogon for domain user with UPN: %s", upn)
+	logger.Debugf("using KerbS4ULogon for domain user with UPN: %s", upn)
 
 	upnUtf16, err := windows.UTF16FromString(upn)
 	if err != nil {
@@ -357,8 +379,8 @@ func prepareDomainS4ULogon(username, domain string) (unsafe.Pointer, uintptr, er
 }
 
 // prepareLocalS4ULogon creates S4U logon structure for local users
-func prepareLocalS4ULogon(username string) (unsafe.Pointer, uintptr, error) {
-	log.Debugf("using Msv1_0S4ULogon for local user: %s", username)
+func prepareLocalS4ULogon(logger *log.Entry, username string) (unsafe.Pointer, uintptr, error) {
+	logger.Debugf("using Msv1_0S4ULogon for local user: %s", username)
 
 	usernameUtf16, err := windows.UTF16FromString(username)
 	if err != nil {
@@ -406,11 +428,11 @@ func prepareLocalS4ULogon(username string) (unsafe.Pointer, uintptr, error) {
 }
 
 // performS4ULogon executes the S4U logon operation
-func performS4ULogon(lsaHandle windows.Handle, authPackageId uint32, logonInfo unsafe.Pointer, logonInfoSize uintptr, userCpn string, isDomainUser bool) (windows.Handle, error) {
+func performS4ULogon(logger *log.Entry, lsaHandle windows.Handle, authPackageId uint32, logonInfo unsafe.Pointer, logonInfoSize uintptr, userCpn string, isDomainUser bool) (windows.Handle, error) {
 	var tokenSource tokenSource
 	copy(tokenSource.SourceName[:], "netbird")
 	if ret, _, _ := procAllocateLocallyUniqueId.Call(uintptr(unsafe.Pointer(&tokenSource.SourceIdentifier))); ret == 0 {
-		log.Debugf("AllocateLocallyUniqueId failed")
+		logger.Debugf("AllocateLocallyUniqueId failed")
 	}
 
 	originName := newLsaString("netbird")
@@ -441,7 +463,7 @@ func performS4ULogon(lsaHandle windows.Handle, authPackageId uint32, logonInfo u
 
 	if profile != 0 {
 		if ret, _, _ := procLsaFreeReturnBuffer.Call(profile); ret != StatusSuccess {
-			log.Debugf("LsaFreeReturnBuffer failed: 0x%x", ret)
+			logger.Debugf("LsaFreeReturnBuffer failed: 0x%x", ret)
 		}
 	}
 
@@ -449,7 +471,7 @@ func performS4ULogon(lsaHandle windows.Handle, authPackageId uint32, logonInfo u
 		return 0, fmt.Errorf("LsaLogonUser S4U for %s: NTSTATUS=0x%x, SubStatus=0x%x", userCpn, ret, subStatus)
 	}
 
-	log.Debugf("created S4U %s token for user %s",
+	logger.Debugf("created S4U %s token for user %s",
 		map[bool]string{true: "domain", false: "local"}[isDomainUser], userCpn)
 	return token, nil
 }
@@ -497,8 +519,8 @@ func (pd *PrivilegeDropper) isLocalUser(domain string) bool {
 
 // authenticateLocalUser handles authentication for local users
 func (pd *PrivilegeDropper) authenticateLocalUser(username, fullUsername string) (windows.Handle, error) {
-	log.Debugf("using S4U authentication for local user %s", fullUsername)
-	token, err := generateS4UUserToken(username, ".")
+	pd.log().Debugf("using S4U authentication for local user %s", fullUsername)
+	token, err := generateS4UUserToken(pd.log(), username, ".")
 	if err != nil {
 		return 0, fmt.Errorf("S4U authentication for local user %s: %w", fullUsername, err)
 	}
@@ -507,12 +529,12 @@ func (pd *PrivilegeDropper) authenticateLocalUser(username, fullUsername string)
 
 // authenticateDomainUser handles authentication for domain users
 func (pd *PrivilegeDropper) authenticateDomainUser(username, domain, fullUsername string) (windows.Handle, error) {
-	log.Debugf("using S4U authentication for domain user %s", fullUsername)
-	token, err := generateS4UUserToken(username, domain)
+	pd.log().Debugf("using S4U authentication for domain user %s", fullUsername)
+	token, err := generateS4UUserToken(pd.log(), username, domain)
 	if err != nil {
 		return 0, fmt.Errorf("S4U authentication for domain user %s: %w", fullUsername, err)
 	}
-	log.Debugf("Successfully created S4U token for domain user %s", fullUsername)
+	pd.log().Debugf("successfully created S4U token for domain user %s", fullUsername)
 	return token, nil
 }
 
@@ -526,7 +548,7 @@ func (pd *PrivilegeDropper) CreateWindowsProcessAsUser(ctx context.Context, exec
 
 	defer func() {
 		if err := windows.CloseHandle(token); err != nil {
-			log.Debugf("close impersonation token: %v", err)
+			pd.log().Debugf("close impersonation token: %v", err)
 		}
 	}()
 
@@ -564,7 +586,7 @@ func (pd *PrivilegeDropper) createProcessWithToken(ctx context.Context, sourceTo
 	return cmd, primaryToken, nil
 }
 
-// createSuCommand creates a command using su -l -c for privilege switching (Windows stub)
-func (s *Server) createSuCommand(ssh.Session, *user.User, bool) (*exec.Cmd, error) {
+// createSuCommand creates a command using su - for privilege switching (Windows stub).
+func (s *Server) createSuCommand(*log.Entry, ssh.Session, *user.User, bool) (*exec.Cmd, error) {
 	return nil, fmt.Errorf("su command not available on Windows")
 }

client/ssh/server/jwt_test.go

@@ -54,7 +54,7 @@ func TestJWTEnforcement(t *testing.T) {
 		server.SetAllowRootLogin(true)
 
 		serverAddr := StartTestServer(t, server)
-		defer require.NoError(t, server.Stop())
+		defer func() { require.NoError(t, server.Stop()) }()
 
 		host, portStr, err := net.SplitHostPort(serverAddr)
 		require.NoError(t, err)
@@ -88,7 +88,7 @@ func TestJWTEnforcement(t *testing.T) {
 		serverNoJWT.SetAllowRootLogin(true)
 
 		serverAddrNoJWT := StartTestServer(t, serverNoJWT)
-		defer require.NoError(t, serverNoJWT.Stop())
+		defer func() { require.NoError(t, serverNoJWT.Stop()) }()
 
 		hostNoJWT, portStrNoJWT, err := net.SplitHostPort(serverAddrNoJWT)
 		require.NoError(t, err)
@@ -213,7 +213,7 @@ func TestJWTDetection(t *testing.T) {
 	server.SetAllowRootLogin(true)
 
 	serverAddr := StartTestServer(t, server)
-	defer require.NoError(t, server.Stop())
+	defer func() { require.NoError(t, server.Stop()) }()
 
 	host, portStr, err := net.SplitHostPort(serverAddr)
 	require.NoError(t, err)
@@ -341,7 +341,7 @@ func TestJWTFailClose(t *testing.T) {
 			server.SetAllowRootLogin(true)
 
 			serverAddr := StartTestServer(t, server)
-			defer require.NoError(t, server.Stop())
+			defer func() { require.NoError(t, server.Stop()) }()
 
 			host, portStr, err := net.SplitHostPort(serverAddr)
 			require.NoError(t, err)
@@ -596,7 +596,7 @@ func TestJWTAuthentication(t *testing.T) {
 			server.UpdateSSHAuth(authConfig)
 
 			serverAddr := StartTestServer(t, server)
-			defer require.NoError(t, server.Stop())
+			defer func() { require.NoError(t, server.Stop()) }()
 
 			host, portStr, err := net.SplitHostPort(serverAddr)
 			require.NoError(t, err)
@@ -715,7 +715,7 @@ func TestJWTMultipleAudiences(t *testing.T) {
 			server.UpdateSSHAuth(authConfig)
 
 			serverAddr := StartTestServer(t, server)
-			defer require.NoError(t, server.Stop())
+			defer func() { require.NoError(t, server.Stop()) }()
 
 			host, portStr, err := net.SplitHostPort(serverAddr)
 			require.NoError(t, err)

client/ssh/server/port_forwarding.go

@@ -271,13 +271,6 @@ func (s *Server) isRemotePortForwardingAllowed() bool {
 	return s.allowRemotePortForwarding
 }
 
-// isPortForwardingEnabled checks if any port forwarding (local or remote) is enabled
-func (s *Server) isPortForwardingEnabled() bool {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-	return s.allowLocalPortForwarding || s.allowRemotePortForwarding
-}
-
 // parseTcpipForwardRequest parses the SSH request payload
 func (s *Server) parseTcpipForwardRequest(req *cryptossh.Request) (*tcpipForwardMsg, error) {
 	var payload tcpipForwardMsg

client/ssh/server/server.go

@@ -335,7 +335,7 @@ func (s *Server) GetStatus() (enabled bool, sessions []SessionInfo) {
 		sessions = append(sessions, info)
 	}
 
-	// Add authenticated connections without sessions (e.g., -N/-T or port-forwarding only)
+	// Add authenticated connections without sessions (e.g., -N or port-forwarding only)
 	for key, connState := range s.connections {
 		remoteAddr := string(key)
 		if reportedAddrs[remoteAddr] {

client/ssh/server/server_config_test.go

@@ -483,12 +483,11 @@ func TestServer_IsPrivilegedUser(t *testing.T) {
 	}
 }
 
-func TestServer_PortForwardingOnlySession(t *testing.T) {
-	// Test that sessions without PTY and command are allowed when port forwarding is enabled
+func TestServer_NonPtyShellSession(t *testing.T) {
+	// Test that non-PTY shell sessions (ssh -T) work regardless of port forwarding settings.
 	currentUser, err := user.Current()
 	require.NoError(t, err, "Should be able to get current user")
 
-	// Generate host key for server
 	hostKey, err := ssh.GeneratePrivateKey(ssh.ED25519)
 	require.NoError(t, err)
 
@@ -496,36 +495,26 @@ func TestServer_PortForwardingOnlySession(t *testing.T) {
 		name                  string
 		allowLocalForwarding  bool
 		allowRemoteForwarding bool
-		expectAllowed         bool
-		description           string
 	}{
 		{
-			name:                  "session_allowed_with_local_forwarding",
+			name:                  "shell_with_local_forwarding_enabled",
 			allowLocalForwarding:  true,
 			allowRemoteForwarding: false,
-			expectAllowed:         true,
-			description:           "Port-forwarding-only session should be allowed when local forwarding is enabled",
 		},
 		{
-			name:                  "session_allowed_with_remote_forwarding",
+			name:                  "shell_with_remote_forwarding_enabled",
 			allowLocalForwarding:  false,
 			allowRemoteForwarding: true,
-			expectAllowed:         true,
-			description:           "Port-forwarding-only session should be allowed when remote forwarding is enabled",
 		},
 		{
-			name:                  "session_allowed_with_both",
+			name:                  "shell_with_both_forwarding_enabled",
 			allowLocalForwarding:  true,
 			allowRemoteForwarding: true,
-			expectAllowed:         true,
-			description:           "Port-forwarding-only session should be allowed when both forwarding types enabled",
 		},
 		{
-			name:                  "session_denied_without_forwarding",
+			name:                  "shell_with_forwarding_disabled",
 			allowLocalForwarding:  false,
 			allowRemoteForwarding: false,
-			expectAllowed:         false,
-			description:           "Port-forwarding-only session should be denied when all forwarding is disabled",
 		},
 	}
 
@@ -545,7 +534,6 @@ func TestServer_PortForwardingOnlySession(t *testing.T) {
 				_ = server.Stop()
 			}()
 
-			// Connect to the server without requesting PTY or command
 			ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 			defer cancel()
 
@@ -557,20 +545,10 @@ func TestServer_PortForwardingOnlySession(t *testing.T) {
 				_ = client.Close()
 			}()
 
-			// Execute a command without PTY - this simulates ssh -T with no command
-			// The server should either allow it (port forwarding enabled) or reject it
-			output, err := client.ExecuteCommand(ctx, "")
-			if tt.expectAllowed {
-				// When allowed, the session stays open until cancelled
-				// ExecuteCommand with empty command should return without error
-				assert.NoError(t, err, "Session should be allowed when port forwarding is enabled")
-				assert.NotContains(t, output, "port forwarding is disabled",
-					"Output should not contain port forwarding disabled message")
-			} else if err != nil {
-				// When denied, we expect an error message about port forwarding being disabled
-				assert.Contains(t, err.Error(), "port forwarding is disabled",
-					"Should get port forwarding disabled message")
-			}
+			// Execute without PTY and no command - simulates ssh -T (shell without PTY)
+			// Should always succeed regardless of port forwarding settings
+			_, err = client.ExecuteCommand(ctx, "")
+			assert.NoError(t, err, "Non-PTY shell session should be allowed")
 		})
 	}
 }

client/ssh/server/server_test.go

@@ -405,12 +405,14 @@ func TestSSHServer_WindowsShellHandling(t *testing.T) {
 		assert.Equal(t, "-Command", args[1])
 		assert.Equal(t, "echo test", args[2])
 	} else {
-		// Test Unix shell behavior
 		args := server.getShellCommandArgs("/bin/sh", "echo test")
 		assert.Equal(t, "/bin/sh", args[0])
-		assert.Equal(t, "-l", args[1])
-		assert.Equal(t, "-c", args[2])
-		assert.Equal(t, "echo test", args[3])
+		assert.Equal(t, "-c", args[1])
+		assert.Equal(t, "echo test", args[2])
+
+		args = server.getShellCommandArgs("/bin/sh", "")
+		assert.Equal(t, "/bin/sh", args[0])
+		assert.Len(t, args, 1)
 	}
 }
 

client/ssh/server/session_handlers.go

@@ -62,54 +62,12 @@ func (s *Server) sessionHandler(session ssh.Session) {
 	ptyReq, winCh, isPty := session.Pty()
 	hasCommand := len(session.Command()) > 0
 
-	switch {
-	case isPty && hasCommand:
-		// ssh -t <host> <cmd> - Pty command execution
-		s.handleCommand(logger, session, privilegeResult, winCh)
-	case isPty:
-		// ssh <host> - Pty interactive session (login)
-		s.handlePty(logger, session, privilegeResult, ptyReq, winCh)
-	case hasCommand:
-		// ssh <host> <cmd> - non-Pty command execution
-		s.handleCommand(logger, session, privilegeResult, nil)
-	default:
-		// ssh -T (or ssh -N) - no PTY, no command
-		s.handleNonInteractiveSession(logger, session)
-	}
-}
-
-// handleNonInteractiveSession handles sessions that have no PTY and no command.
-// These are typically used for port forwarding (ssh -L/-R) or tunneling (ssh -N).
-func (s *Server) handleNonInteractiveSession(logger *log.Entry, session ssh.Session) {
-	s.updateSessionType(session, cmdNonInteractive)
-
-	if !s.isPortForwardingEnabled() {
-		if _, err := io.WriteString(session, "port forwarding is disabled on this server\n"); err != nil {
-			logger.Debugf(errWriteSession, err)
-		}
-		if err := session.Exit(1); err != nil {
-			logSessionExitError(logger, err)
-		}
-		logger.Infof("rejected non-interactive session: port forwarding disabled")
-		return
-	}
-
-	<-session.Context().Done()
-
-	if err := session.Exit(0); err != nil {
-		logSessionExitError(logger, err)
-	}
-}
-
-func (s *Server) updateSessionType(session ssh.Session, sessionType string) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	for _, state := range s.sessions {
-		if state.session == session {
-			state.sessionType = sessionType
-			return
-		}
+	if isPty && !hasCommand {
+		// ssh <host> - PTY interactive session (login)
+		s.handlePtyLogin(logger, session, privilegeResult, ptyReq, winCh)
+	} else {
+		// ssh <host> <cmd>, ssh -t <host> <cmd>, ssh -T <host> - command or shell execution
+		s.handleExecution(logger, session, privilegeResult, ptyReq, winCh)
 	}
 }
 

client/ssh/server/session_handlers_js.go

@@ -9,8 +9,8 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-// handlePty is not supported on JS/WASM
-func (s *Server) handlePty(logger *log.Entry, session ssh.Session, _ PrivilegeCheckResult, _ ssh.Pty, _ <-chan ssh.Window) bool {
+// handlePtyLogin is not supported on JS/WASM
+func (s *Server) handlePtyLogin(logger *log.Entry, session ssh.Session, _ PrivilegeCheckResult, _ ssh.Pty, _ <-chan ssh.Window) bool {
 	errorMsg := "PTY sessions are not supported on WASM/JS platform\n"
 	if _, err := fmt.Fprint(session.Stderr(), errorMsg); err != nil {
 		logger.Debugf(errWriteSession, err)

client/ssh/server/test.go

@@ -8,19 +8,18 @@ import (
 	"time"
 )
 
+// StartTestServer starts the SSH server and returns the address it's listening on.
 func StartTestServer(t *testing.T, server *Server) string {
 	started := make(chan string, 1)
 	errChan := make(chan error, 1)
 
 	go func() {
-		// Use port 0 to let the OS assign a free port
 		addrPort := netip.MustParseAddrPort("127.0.0.1:0")
 		if err := server.Start(context.Background(), addrPort); err != nil {
 			errChan <- err
 			return
 		}
 
-		// Get the actual listening address from the server
 		actualAddr := server.Addr()
 		if actualAddr == nil {
 			errChan <- fmt.Errorf("server started but no listener address available")

client/ssh/server/userswitching_unix.go

@@ -181,8 +181,8 @@ func (s *Server) getSupplementaryGroups(username string) ([]uint32, error) {
 
 // createExecutorCommand creates a command that spawns netbird ssh exec for privilege dropping.
 // Returns the command and a cleanup function (no-op on Unix).
-func (s *Server) createExecutorCommand(session ssh.Session, localUser *user.User, hasPty bool) (*exec.Cmd, func(), error) {
-	log.Debugf("creating executor command for user %s (Pty: %v)", localUser.Username, hasPty)
+func (s *Server) createExecutorCommand(logger *log.Entry, session ssh.Session, localUser *user.User, hasPty bool) (*exec.Cmd, func(), error) {
+	logger.Debugf("creating executor command for user %s (Pty: %v)", localUser.Username, hasPty)
 
 	if err := validateUsername(localUser.Username); err != nil {
 		return nil, nil, fmt.Errorf("invalid username %q: %w", localUser.Username, err)
@@ -192,7 +192,7 @@ func (s *Server) createExecutorCommand(session ssh.Session, localUser *user.User
 	if err != nil {
 		return nil, nil, fmt.Errorf("parse user credentials: %w", err)
 	}
-	privilegeDropper := NewPrivilegeDropper()
+	privilegeDropper := NewPrivilegeDropper(WithLogger(logger))
 	config := ExecutorConfig{
 		UID:        uid,
 		GID:        gid,
@@ -233,7 +233,7 @@ func (s *Server) createDirectPtyCommand(session ssh.Session, localUser *user.Use
 	shell := getUserShell(localUser.Uid)
 	args := s.getShellCommandArgs(shell, session.RawCommand())
 
-	cmd := exec.CommandContext(session.Context(), args[0], args[1:]...)
+	cmd := s.createShellCommand(session.Context(), shell, args)
 	cmd.Dir = localUser.HomeDir
 	cmd.Env = s.preparePtyEnv(localUser, ptyReq, session)
 

client/ssh/server/userswitching_windows.go

@@ -88,20 +88,20 @@ func validateUsernameFormat(username string) error {
 
 // createExecutorCommand creates a command using Windows executor for privilege dropping.
 // Returns the command and a cleanup function that must be called after starting the process.
-func (s *Server) createExecutorCommand(session ssh.Session, localUser *user.User, hasPty bool) (*exec.Cmd, func(), error) {
-	log.Debugf("creating Windows executor command for user %s (Pty: %v)", localUser.Username, hasPty)
+func (s *Server) createExecutorCommand(logger *log.Entry, session ssh.Session, localUser *user.User, hasPty bool) (*exec.Cmd, func(), error) {
+	logger.Debugf("creating Windows executor command for user %s (Pty: %v)", localUser.Username, hasPty)
 
 	username, _ := s.parseUsername(localUser.Username)
 	if err := validateUsername(username); err != nil {
 		return nil, nil, fmt.Errorf("invalid username %q: %w", username, err)
 	}
 
-	return s.createUserSwitchCommand(localUser, session, hasPty)
+	return s.createUserSwitchCommand(logger, session, localUser)
 }
 
 // createUserSwitchCommand creates a command with Windows user switching.
 // Returns the command and a cleanup function that must be called after starting the process.
-func (s *Server) createUserSwitchCommand(localUser *user.User, session ssh.Session, interactive bool) (*exec.Cmd, func(), error) {
+func (s *Server) createUserSwitchCommand(logger *log.Entry, session ssh.Session, localUser *user.User) (*exec.Cmd, func(), error) {
 	username, domain := s.parseUsername(localUser.Username)
 
 	shell := getUserShell(localUser.Uid)
@@ -113,15 +113,14 @@ func (s *Server) createUserSwitchCommand(localUser *user.User, session ssh.Sessi
 	}
 
 	config := WindowsExecutorConfig{
-		Username:    username,
-		Domain:      domain,
-		WorkingDir:  localUser.HomeDir,
-		Shell:       shell,
-		Command:     command,
-		Interactive: interactive || (rawCmd == ""),
+		Username:   username,
+		Domain:     domain,
+		WorkingDir: localUser.HomeDir,
+		Shell:      shell,
+		Command:    command,
 	}
 
-	dropper := NewPrivilegeDropper()
+	dropper := NewPrivilegeDropper(WithLogger(logger))
 	cmd, token, err := dropper.CreateWindowsExecutorCommand(session.Context(), config)
 	if err != nil {
 		return nil, nil, err
@@ -130,7 +129,7 @@ func (s *Server) createUserSwitchCommand(localUser *user.User, session ssh.Sessi
 	cleanup := func() {
 		if token != 0 {
 			if err := windows.CloseHandle(windows.Handle(token)); err != nil {
-				log.Debugf("close primary token: %v", err)
+				logger.Debugf("close primary token: %v", err)
 			}
 		}
 	}

client/ssh/server/winpty/conpty.go

@@ -56,7 +56,7 @@ var (
 )
 
 // ExecutePtyWithUserToken executes a command with ConPty using user token.
-func ExecutePtyWithUserToken(ctx context.Context, session ssh.Session, ptyConfig PtyConfig, userConfig UserConfig) error {
+func ExecutePtyWithUserToken(session ssh.Session, ptyConfig PtyConfig, userConfig UserConfig) error {
 	args := buildShellArgs(ptyConfig.Shell, ptyConfig.Command)
 	commandLine := buildCommandLine(args)
 
@@ -64,7 +64,7 @@ func ExecutePtyWithUserToken(ctx context.Context, session ssh.Session, ptyConfig
 		Pty:     ptyConfig,
 		User:    userConfig,
 		Session: session,
-		Context: ctx,
+		Context: session.Context(),
 	}
 
 	return executeConPtyWithConfig(commandLine, config)

client/ui/event_handler.go

@@ -63,6 +63,8 @@ func (h *eventHandler) listen(ctx context.Context) {
 			h.handleNetworksClick()
 		case <-h.client.mNotifications.ClickedCh:
 			h.handleNotificationsClick()
+		case <-systray.TrayOpenedCh:
+			h.client.updateExitNodes()
 		}
 	}
 }

client/ui/network.go

@@ -341,7 +341,6 @@ func (s *serviceClient) updateExitNodes() {
 		log.Errorf("get client: %v", err)
 		return
 	}
-
 	exitNodes, err := s.getExitNodes(conn)
 	if err != nil {
 		log.Errorf("get exit nodes: %v", err)

go.mod

@@ -31,7 +31,7 @@ require (
 
 require (
 	fyne.io/fyne/v2 v2.7.0
-	fyne.io/systray v1.11.1-0.20250603113521-ca66a66d8b58
+	fyne.io/systray v1.12.1-0.20260116214250-81f8e1a496f9
 	github.com/TheJumpCloud/jcapi-go v3.0.0+incompatible
 	github.com/awnumar/memguard v0.23.0
 	github.com/aws/aws-sdk-go-v2 v1.36.3

go.sum

@@ -13,8 +13,8 @@ filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
 fyne.io/fyne/v2 v2.7.0 h1:GvZSpE3X0liU/fqstInVvRsaboIVpIWQ4/sfjDGIGGQ=
 fyne.io/fyne/v2 v2.7.0/go.mod h1:xClVlrhxl7D+LT+BWYmcrW4Nf+dJTvkhnPgji7spAwE=
-fyne.io/systray v1.11.1-0.20250603113521-ca66a66d8b58 h1:eA5/u2XRd8OUkoMqEv3IBlFYSruNlXD8bRHDiqm0VNI=
-fyne.io/systray v1.11.1-0.20250603113521-ca66a66d8b58/go.mod h1:RVwqP9nYMo7h5zViCBHri2FgjXF7H2cub7MAq4NSoLs=
+fyne.io/systray v1.12.1-0.20260116214250-81f8e1a496f9 h1:829+77I4TaMrcg9B3wf+gHhdSgoCVEgH2czlPXPbfj4=
+fyne.io/systray v1.12.1-0.20260116214250-81f8e1a496f9/go.mod h1:RVwqP9nYMo7h5zViCBHri2FgjXF7H2cub7MAq4NSoLs=
 github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 h1:bvDV9vkmnHYOMsOr4WLk+Vo07yKIzd94sVoIqshQ4bU=
 github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24/go.mod h1:8o94RPi1/7XTJvwPpRSzSUedZrtlirdB3r9Z20bi2f8=
 github.com/AppsFlyer/go-sundheit v0.6.0 h1:d2hBvCjBSb2lUsEWGfPigr4MCOt04sxB+Rppl0yUMSk=

management/cmd/management.go

@@ -16,13 +16,13 @@ import (
 	"strings"
 	"syscall"
 
-	"github.com/miekg/dns"
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 
 	"github.com/netbirdio/netbird/formatter/hook"
 	"github.com/netbirdio/netbird/management/internals/server"
 	nbconfig "github.com/netbirdio/netbird/management/internals/server/config"
+	nbdomain "github.com/netbirdio/netbird/shared/management/domain"
 	"github.com/netbirdio/netbird/util"
 	"github.com/netbirdio/netbird/util/crypt"
 )
@@ -78,9 +78,8 @@ var (
 				}
 			}
 
-			_, valid := dns.IsDomainName(dnsDomain)
-			if !valid || len(dnsDomain) > 192 {
-				return fmt.Errorf("failed parsing the provided dns-domain. Valid status: %t, Length: %d", valid, len(dnsDomain))
+			if !nbdomain.IsValidDomainNoWildcard(dnsDomain) {
+				return fmt.Errorf("invalid dns-domain: %s", dnsDomain)
 			}
 
 			return nil

management/internals/modules/peers/ephemeral/manager/ephemeral.go

@@ -187,10 +187,10 @@ func (e *EphemeralManager) cleanup(ctx context.Context) {
 	}
 
 	for accountID, peerIDs := range peerIDsPerAccount {
-		log.WithContext(ctx).Debugf("delete ephemeral peers for account: %s", accountID)
+		log.WithContext(ctx).Tracef("cleanup: deleting %d ephemeral peers for account %s", len(peerIDs), accountID)
 		err := e.peersManager.DeletePeers(ctx, accountID, peerIDs, activity.SystemInitiator, true)
 		if err != nil {
-			log.WithContext(ctx).Errorf("failed to delete ephemeral peer: %s", err)
+			log.WithContext(ctx).Errorf("failed to delete ephemeral peers: %s", err)
 		}
 	}
 }

management/internals/modules/peers/manager.go

@@ -108,10 +108,19 @@ func (m *managerImpl) DeletePeers(ctx context.Context, accountID string, peerIDs
 		err = m.store.ExecuteInTransaction(ctx, func(transaction store.Store) error {
 			peer, err := transaction.GetPeerByID(ctx, store.LockingStrengthNone, accountID, peerID)
 			if err != nil {
+				if e, ok := status.FromError(err); ok && e.Type() == status.NotFound {
+					log.WithContext(ctx).Tracef("DeletePeers: peer %s not found, skipping", peerID)
+					return nil
+				}
 				return err
 			}
 
 			if checkConnected && (peer.Status.Connected || peer.Status.LastSeen.After(time.Now().Add(-(ephemeral.EphemeralLifeTime - 10*time.Second)))) {
+				log.WithContext(ctx).Tracef("DeletePeers: peer %s skipped (connected=%t, lastSeen=%s, threshold=%s, ephemeral=%t)",
+					peerID, peer.Status.Connected,
+					peer.Status.LastSeen.Format(time.RFC3339),
+					time.Now().Add(-(ephemeral.EphemeralLifeTime - 10*time.Second)).Format(time.RFC3339),
+					peer.Ephemeral)
 				return nil
 			}
 
@@ -150,7 +159,8 @@ func (m *managerImpl) DeletePeers(ctx context.Context, accountID string, peerIDs
 			return nil
 		})
 		if err != nil {
-			return err
+			log.WithContext(ctx).Errorf("DeletePeers: failed to delete peer %s: %v", peerID, err)
+			continue
 		}
 
 		if m.integratedPeerValidator != nil {

management/internals/modules/zones/records/record.go

@@ -6,7 +6,7 @@ import (
 
 	"github.com/rs/xid"
 
-	"github.com/netbirdio/netbird/management/server/util"
+	"github.com/netbirdio/netbird/shared/management/domain"
 	"github.com/netbirdio/netbird/shared/management/http/api"
 )
 
@@ -63,7 +63,7 @@ func (r *Record) Validate() error {
 		return errors.New("record name is required")
 	}
 
-	if !util.IsValidDomain(r.Name) {
+	if !domain.IsValidDomain(r.Name) {
 		return errors.New("invalid record name format")
 	}
 
@@ -81,8 +81,8 @@ func (r *Record) Validate() error {
 			return err
 		}
 	case RecordTypeCNAME:
-		if !util.IsValidDomain(r.Content) {
-			return errors.New("invalid CNAME record format")
+		if !domain.IsValidDomainNoWildcard(r.Content) {
+			return errors.New("invalid CNAME target format")
 		}
 	default:
 		return errors.New("invalid record type, must be A, AAAA, or CNAME")

management/internals/modules/zones/zone.go

@@ -6,7 +6,7 @@ import (
 	"github.com/rs/xid"
 
 	"github.com/netbirdio/netbird/management/internals/modules/zones/records"
-	"github.com/netbirdio/netbird/management/server/util"
+	"github.com/netbirdio/netbird/shared/management/domain"
 	"github.com/netbirdio/netbird/shared/management/http/api"
 )
 
@@ -73,7 +73,7 @@ func (z *Zone) Validate() error {
 		return errors.New("zone name exceeds maximum length of 255 characters")
 	}
 
-	if !util.IsValidDomain(z.Domain) {
+	if !domain.IsValidDomainNoWildcard(z.Domain) {
 		return errors.New("invalid zone domain format")
 	}
 

management/internals/shared/grpc/server.go

@@ -17,13 +17,14 @@ import (
 	pb "github.com/golang/protobuf/proto" // nolint
 	"github.com/golang/protobuf/ptypes/timestamp"
 	"github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/realip"
-	"github.com/netbirdio/netbird/shared/management/client/common"
 	log "github.com/sirupsen/logrus"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/peer"
 	"google.golang.org/grpc/status"
 
+	"github.com/netbirdio/netbird/shared/management/client/common"
+
 	"github.com/netbirdio/netbird/management/internals/controllers/network_map"
 	nbconfig "github.com/netbirdio/netbird/management/internals/server/config"
 	"github.com/netbirdio/netbird/management/server/idp"
@@ -232,6 +233,9 @@ func (s *Server) Sync(req *proto.EncryptedMessage, srv proto.ManagementService_S
 	userID, err := s.accountManager.GetUserIDByPeerKey(ctx, peerKey.String())
 	if err != nil {
 		s.syncSem.Add(-1)
+		if errStatus, ok := internalStatus.FromError(err); ok && errStatus.Type() == internalStatus.NotFound {
+			return status.Errorf(codes.PermissionDenied, "peer is not registered")
+		}
 		return mapError(ctx, err)
 	}
 
@@ -301,6 +305,7 @@ func (s *Server) Sync(req *proto.EncryptedMessage, srv proto.ManagementService_S
 	if err != nil {
 		log.WithContext(ctx).Debugf("error while sending initial sync for %s: %v", peerKey.String(), err)
 		s.syncSem.Add(-1)
+		s.cancelPeerRoutines(ctx, accountID, peer)
 		return err
 	}
 

management/server/account.go

@@ -26,6 +26,7 @@ import (
 	"golang.org/x/exp/maps"
 
 	nbdns "github.com/netbirdio/netbird/dns"
+	nbdomain "github.com/netbirdio/netbird/shared/management/domain"
 	"github.com/netbirdio/netbird/formatter/hook"
 	"github.com/netbirdio/netbird/management/internals/controllers/network_map"
 	nbconfig "github.com/netbirdio/netbird/management/internals/server/config"
@@ -231,7 +232,7 @@ func BuildManager(
 	// enable single account mode only if configured by user and number of existing accounts is not grater than 1
 	am.singleAccountMode = singleAccountModeDomain != "" && accountsCounter <= 1
 	if am.singleAccountMode {
-		if !isDomainValid(singleAccountModeDomain) {
+		if !nbdomain.IsValidDomainNoWildcard(singleAccountModeDomain) {
 			return nil, status.Errorf(status.InvalidArgument, "invalid domain \"%s\" provided for a single account mode. Please review your input for --single-account-mode-domain", singleAccountModeDomain)
 		}
 		am.singleAccountModeDomain = singleAccountModeDomain
@@ -402,7 +403,7 @@ func (am *DefaultAccountManager) validateSettingsUpdate(ctx context.Context, tra
 		return status.Errorf(status.InvalidArgument, "peer login expiration can't be smaller than one hour")
 	}
 
-	if newSettings.DNSDomain != "" && !isDomainValid(newSettings.DNSDomain) {
+	if newSettings.DNSDomain != "" && !nbdomain.IsValidDomainNoWildcard(newSettings.DNSDomain) {
 		return status.Errorf(status.InvalidArgument, "invalid domain \"%s\" provided for DNS domain", newSettings.DNSDomain)
 	}
 
@@ -1691,10 +1692,12 @@ func (am *DefaultAccountManager) SyncPeerMeta(ctx context.Context, peerPubKey st
 	return nil
 }
 
-var invalidDomainRegexp = regexp.MustCompile(`^([a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,}$`)
+// isDomainValid validates public/IDP domains using stricter rules than internal DNS domains.
+// Requires at least 2-char alphabetic TLD and no single-label domains.
+var publicDomainRegexp = regexp.MustCompile(`^([a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,}$`)
 
 func isDomainValid(domain string) bool {
-	return invalidDomainRegexp.MatchString(domain)
+	return publicDomainRegexp.MatchString(domain)
 }
 
 func (am *DefaultAccountManager) onPeersInvalidated(ctx context.Context, accountID string, peerIDs []string) {

management/server/account/manager.go

@@ -30,6 +30,12 @@ type Manager interface {
 		autoGroups []string, usageLimit int, userID string, ephemeral bool, allowExtraDNSLabels bool) (*types.SetupKey, error)
 	SaveSetupKey(ctx context.Context, accountID string, key *types.SetupKey, userID string) (*types.SetupKey, error)
 	CreateUser(ctx context.Context, accountID, initiatorUserID string, key *types.UserInfo) (*types.UserInfo, error)
+	CreateUserInvite(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error)
+	AcceptUserInvite(ctx context.Context, token, password string) error
+	RegenerateUserInvite(ctx context.Context, accountID, initiatorUserID, inviteID string, expiresIn int) (*types.UserInvite, error)
+	GetUserInviteInfo(ctx context.Context, token string) (*types.UserInviteInfo, error)
+	ListUserInvites(ctx context.Context, accountID, initiatorUserID string) ([]*types.UserInvite, error)
+	DeleteUserInvite(ctx context.Context, accountID, initiatorUserID, inviteID string) error
 	DeleteUser(ctx context.Context, accountID, initiatorUserID string, targetUserID string) error
 	DeleteRegularUsers(ctx context.Context, accountID, initiatorUserID string, targetUserIDs []string, userInfos map[string]*types.UserInfo) error
 	UpdateUserPassword(ctx context.Context, accountID, currentUserID, targetUserID string, oldPassword, newPassword string) error

management/server/activity/codes.go

@@ -199,6 +199,11 @@ const (
 
 	UserPasswordChanged Activity = 103
 
+	UserInviteLinkCreated     Activity = 104
+	UserInviteLinkAccepted    Activity = 105
+	UserInviteLinkRegenerated Activity = 106
+	UserInviteLinkDeleted     Activity = 107
+
 	AccountDeleted Activity = 99999
 )
 
@@ -327,6 +332,11 @@ var activityMap = map[Activity]Code{
 	JobCreatedByUser: {"Create Job for peer", "peer.job.create"},
 
 	UserPasswordChanged: {"User password changed", "user.password.change"},
+
+	UserInviteLinkCreated:     {"User invite link created", "user.invite.link.create"},
+	UserInviteLinkAccepted:    {"User invite link accepted", "user.invite.link.accept"},
+	UserInviteLinkRegenerated: {"User invite link regenerated", "user.invite.link.regenerate"},
+	UserInviteLinkDeleted:     {"User invite link deleted", "user.invite.link.delete"},
 }
 
 // StringCode returns a string code of the activity

management/server/http/handler.go

@@ -68,6 +68,13 @@ func NewAPIHandler(ctx context.Context, accountManager account.Manager, networks
 	if err := bypass.AddBypassPath("/api/setup"); err != nil {
 		return nil, fmt.Errorf("failed to add bypass path: %w", err)
 	}
+	// Public invite endpoints (tokens start with nbi_)
+	if err := bypass.AddBypassPath("/api/users/invites/nbi_*"); err != nil {
+		return nil, fmt.Errorf("failed to add bypass path: %w", err)
+	}
+	if err := bypass.AddBypassPath("/api/users/invites/nbi_*/accept"); err != nil {
+		return nil, fmt.Errorf("failed to add bypass path: %w", err)
+	}
 
 	var rateLimitingConfig *middleware.RateLimiterConfig
 	if os.Getenv(rateLimitingEnabledKey) == "true" {
@@ -132,6 +139,8 @@ func NewAPIHandler(ctx context.Context, accountManager account.Manager, networks
 	accounts.AddEndpoints(accountManager, settingsManager, embeddedIdpEnabled, router)
 	peers.AddEndpoints(accountManager, router, networkMapController)
 	users.AddEndpoints(accountManager, router)
+	users.AddInvitesEndpoints(accountManager, router)
+	users.AddPublicInvitesEndpoints(accountManager, router)
 	setup_keys.AddEndpoints(accountManager, router)
 	policies.AddEndpoints(accountManager, LocationManager, router)
 	policies.AddPostureCheckEndpoints(accountManager, LocationManager, router)
@@ -145,6 +154,7 @@ func NewAPIHandler(ctx context.Context, accountManager account.Manager, networks
 	recordsManager.RegisterEndpoints(router, rManager)
 	idp.AddEndpoints(accountManager, router)
 	instance.AddEndpoints(instanceManager, router)
+	instance.AddVersionEndpoint(instanceManager, router)
 
 	// Mount embedded IdP handler at /oauth2 path if configured
 	if embeddedIdpEnabled {

management/server/http/handlers/instance/instance_handler.go

@@ -28,6 +28,15 @@ func AddEndpoints(instanceManager nbinstance.Manager, router *mux.Router) {
 	router.HandleFunc("/setup", h.setup).Methods("POST", "OPTIONS")
 }
 
+// AddVersionEndpoint registers the authenticated version endpoint.
+func AddVersionEndpoint(instanceManager nbinstance.Manager, router *mux.Router) {
+	h := &handler{
+		instanceManager: instanceManager,
+	}
+
+	router.HandleFunc("/instance/version", h.getVersionInfo).Methods("GET", "OPTIONS")
+}
+
 // getInstanceStatus returns the instance status including whether setup is required.
 // This endpoint is unauthenticated.
 func (h *handler) getInstanceStatus(w http.ResponseWriter, r *http.Request) {
@@ -65,3 +74,29 @@ func (h *handler) setup(w http.ResponseWriter, r *http.Request) {
 		Email:  userData.Email,
 	})
 }
+
+// getVersionInfo returns version information for NetBird components.
+// This endpoint requires authentication.
+func (h *handler) getVersionInfo(w http.ResponseWriter, r *http.Request) {
+	versionInfo, err := h.instanceManager.GetVersionInfo(r.Context())
+	if err != nil {
+		log.WithContext(r.Context()).Errorf("failed to get version info: %v", err)
+		util.WriteErrorResponse("failed to get version info", http.StatusInternalServerError, w)
+		return
+	}
+
+	resp := api.InstanceVersionInfo{
+		ManagementCurrentVersion:  versionInfo.CurrentVersion,
+		ManagementUpdateAvailable: versionInfo.ManagementUpdateAvailable,
+	}
+
+	if versionInfo.DashboardVersion != "" {
+		resp.DashboardAvailableVersion = &versionInfo.DashboardVersion
+	}
+
+	if versionInfo.ManagementVersion != "" {
+		resp.ManagementAvailableVersion = &versionInfo.ManagementVersion
+	}
+
+	util.WriteJSONObject(r.Context(), w, resp)
+}

management/server/http/handlers/instance/instance_handler_test.go

@@ -25,6 +25,7 @@ type mockInstanceManager struct {
 	isSetupRequired   bool
 	isSetupRequiredFn func(ctx context.Context) (bool, error)
 	createOwnerUserFn func(ctx context.Context, email, password, name string) (*idp.UserData, error)
+	getVersionInfoFn  func(ctx context.Context) (*nbinstance.VersionInfo, error)
 }
 
 func (m *mockInstanceManager) IsSetupRequired(ctx context.Context) (bool, error) {
@@ -66,6 +67,18 @@ func (m *mockInstanceManager) CreateOwnerUser(ctx context.Context, email, passwo
 	}, nil
 }
 
+func (m *mockInstanceManager) GetVersionInfo(ctx context.Context) (*nbinstance.VersionInfo, error) {
+	if m.getVersionInfoFn != nil {
+		return m.getVersionInfoFn(ctx)
+	}
+	return &nbinstance.VersionInfo{
+		CurrentVersion:            "0.34.0",
+		DashboardVersion:          "2.0.0",
+		ManagementVersion:         "0.35.0",
+		ManagementUpdateAvailable: true,
+	}, nil
+}
+
 var _ nbinstance.Manager = (*mockInstanceManager)(nil)
 
 func setupTestRouter(manager nbinstance.Manager) *mux.Router {
@@ -279,3 +292,44 @@ func TestSetup_ManagerError(t *testing.T) {
 
 	assert.Equal(t, http.StatusInternalServerError, rec.Code)
 }
+
+func TestGetVersionInfo_Success(t *testing.T) {
+	manager := &mockInstanceManager{}
+	router := mux.NewRouter()
+	AddVersionEndpoint(manager, router)
+
+	req := httptest.NewRequest(http.MethodGet, "/instance/version", nil)
+	rec := httptest.NewRecorder()
+
+	router.ServeHTTP(rec, req)
+
+	assert.Equal(t, http.StatusOK, rec.Code)
+
+	var response api.InstanceVersionInfo
+	err := json.NewDecoder(rec.Body).Decode(&response)
+	require.NoError(t, err)
+
+	assert.Equal(t, "0.34.0", response.ManagementCurrentVersion)
+	assert.NotNil(t, response.DashboardAvailableVersion)
+	assert.Equal(t, "2.0.0", *response.DashboardAvailableVersion)
+	assert.NotNil(t, response.ManagementAvailableVersion)
+	assert.Equal(t, "0.35.0", *response.ManagementAvailableVersion)
+	assert.True(t, response.ManagementUpdateAvailable)
+}
+
+func TestGetVersionInfo_Error(t *testing.T) {
+	manager := &mockInstanceManager{
+		getVersionInfoFn: func(ctx context.Context) (*nbinstance.VersionInfo, error) {
+			return nil, errors.New("failed to fetch versions")
+		},
+	}
+	router := mux.NewRouter()
+	AddVersionEndpoint(manager, router)
+
+	req := httptest.NewRequest(http.MethodGet, "/instance/version", nil)
+	rec := httptest.NewRecorder()
+
+	router.ServeHTTP(rec, req)
+
+	assert.Equal(t, http.StatusInternalServerError, rec.Code)
+}

management/server/http/handlers/users/invites_handler.go

@@ -0,0 +1,263 @@
+package users
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+	"time"
+
+	"github.com/gorilla/mux"
+
+	"github.com/netbirdio/netbird/management/server/account"
+	nbcontext "github.com/netbirdio/netbird/management/server/context"
+	"github.com/netbirdio/netbird/management/server/http/middleware"
+	"github.com/netbirdio/netbird/management/server/types"
+	"github.com/netbirdio/netbird/shared/management/http/api"
+	"github.com/netbirdio/netbird/shared/management/http/util"
+	"github.com/netbirdio/netbird/shared/management/status"
+)
+
+// publicInviteRateLimiter limits public invite requests by IP address to prevent brute-force attacks
+var publicInviteRateLimiter = middleware.NewAPIRateLimiter(&middleware.RateLimiterConfig{
+	RequestsPerMinute: 10, // 10 attempts per minute per IP
+	Burst:             5,  // Allow burst of 5 requests
+	CleanupInterval:   10 * time.Minute,
+	LimiterTTL:        30 * time.Minute,
+})
+
+// toUserInviteResponse converts a UserInvite to an API response.
+func toUserInviteResponse(invite *types.UserInvite) api.UserInvite {
+	autoGroups := invite.UserInfo.AutoGroups
+	if autoGroups == nil {
+		autoGroups = []string{}
+	}
+	var inviteLink *string
+	if invite.InviteToken != "" {
+		inviteLink = &invite.InviteToken
+	}
+	return api.UserInvite{
+		Id:          invite.UserInfo.ID,
+		Email:       invite.UserInfo.Email,
+		Name:        invite.UserInfo.Name,
+		Role:        invite.UserInfo.Role,
+		AutoGroups:  autoGroups,
+		ExpiresAt:   invite.InviteExpiresAt.UTC(),
+		CreatedAt:   invite.InviteCreatedAt.UTC(),
+		Expired:     time.Now().After(invite.InviteExpiresAt),
+		InviteToken: inviteLink,
+	}
+}
+
+// invitesHandler handles user invite operations
+type invitesHandler struct {
+	accountManager account.Manager
+}
+
+// AddInvitesEndpoints registers invite-related endpoints
+func AddInvitesEndpoints(accountManager account.Manager, router *mux.Router) {
+	h := &invitesHandler{accountManager: accountManager}
+
+	// Authenticated endpoints (require admin)
+	router.HandleFunc("/users/invites", h.listInvites).Methods("GET", "OPTIONS")
+	router.HandleFunc("/users/invites", h.createInvite).Methods("POST", "OPTIONS")
+	router.HandleFunc("/users/invites/{inviteId}", h.deleteInvite).Methods("DELETE", "OPTIONS")
+	router.HandleFunc("/users/invites/{inviteId}/regenerate", h.regenerateInvite).Methods("POST", "OPTIONS")
+}
+
+// AddPublicInvitesEndpoints registers public (unauthenticated) invite endpoints with rate limiting
+func AddPublicInvitesEndpoints(accountManager account.Manager, router *mux.Router) {
+	h := &invitesHandler{accountManager: accountManager}
+
+	// Create a subrouter for public invite endpoints with rate limiting middleware
+	publicRouter := router.PathPrefix("/users/invites").Subrouter()
+	publicRouter.Use(publicInviteRateLimiter.Middleware)
+
+	// Public endpoints (no auth required, protected by token and rate limited)
+	publicRouter.HandleFunc("/{token}", h.getInviteInfo).Methods("GET", "OPTIONS")
+	publicRouter.HandleFunc("/{token}/accept", h.acceptInvite).Methods("POST", "OPTIONS")
+}
+
+// listInvites handles GET /api/users/invites
+func (h *invitesHandler) listInvites(w http.ResponseWriter, r *http.Request) {
+
+	userAuth, err := nbcontext.GetUserAuthFromContext(r.Context())
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	invites, err := h.accountManager.ListUserInvites(r.Context(), userAuth.AccountId, userAuth.UserId)
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	resp := make([]api.UserInvite, 0, len(invites))
+	for _, invite := range invites {
+		resp = append(resp, toUserInviteResponse(invite))
+	}
+
+	util.WriteJSONObject(r.Context(), w, resp)
+}
+
+// createInvite handles POST /api/users/invites
+func (h *invitesHandler) createInvite(w http.ResponseWriter, r *http.Request) {
+
+	userAuth, err := nbcontext.GetUserAuthFromContext(r.Context())
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	var req api.UserInviteCreateRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		util.WriteErrorResponse("couldn't parse JSON request", http.StatusBadRequest, w)
+		return
+	}
+
+	invite := &types.UserInfo{
+		Email:      req.Email,
+		Name:       req.Name,
+		Role:       req.Role,
+		AutoGroups: req.AutoGroups,
+	}
+
+	expiresIn := 0
+	if req.ExpiresIn != nil {
+		expiresIn = *req.ExpiresIn
+	}
+
+	result, err := h.accountManager.CreateUserInvite(r.Context(), userAuth.AccountId, userAuth.UserId, invite, expiresIn)
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	result.InviteCreatedAt = time.Now().UTC()
+	resp := toUserInviteResponse(result)
+	util.WriteJSONObject(r.Context(), w, &resp)
+}
+
+// getInviteInfo handles GET /api/users/invites/{token}
+func (h *invitesHandler) getInviteInfo(w http.ResponseWriter, r *http.Request) {
+
+	vars := mux.Vars(r)
+	token := vars["token"]
+	if token == "" {
+		util.WriteError(r.Context(), status.Errorf(status.InvalidArgument, "token is required"), w)
+		return
+	}
+
+	info, err := h.accountManager.GetUserInviteInfo(r.Context(), token)
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	expiresAt := info.ExpiresAt.UTC()
+	util.WriteJSONObject(r.Context(), w, &api.UserInviteInfo{
+		Email:     info.Email,
+		Name:      info.Name,
+		ExpiresAt: expiresAt,
+		Valid:     info.Valid,
+		InvitedBy: info.InvitedBy,
+	})
+}
+
+// acceptInvite handles POST /api/users/invites/{token}/accept
+func (h *invitesHandler) acceptInvite(w http.ResponseWriter, r *http.Request) {
+
+	vars := mux.Vars(r)
+	token := vars["token"]
+	if token == "" {
+		util.WriteError(r.Context(), status.Errorf(status.InvalidArgument, "token is required"), w)
+		return
+	}
+
+	var req api.UserInviteAcceptRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		util.WriteErrorResponse("couldn't parse JSON request", http.StatusBadRequest, w)
+		return
+	}
+
+	err := h.accountManager.AcceptUserInvite(r.Context(), token, req.Password)
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	util.WriteJSONObject(r.Context(), w, &api.UserInviteAcceptResponse{Success: true})
+}
+
+// regenerateInvite handles POST /api/users/invites/{inviteId}/regenerate
+func (h *invitesHandler) regenerateInvite(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		util.WriteErrorResponse("wrong HTTP method", http.StatusMethodNotAllowed, w)
+		return
+	}
+
+	userAuth, err := nbcontext.GetUserAuthFromContext(r.Context())
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	vars := mux.Vars(r)
+	inviteID := vars["inviteId"]
+	if inviteID == "" {
+		util.WriteError(r.Context(), status.Errorf(status.InvalidArgument, "invite ID is required"), w)
+		return
+	}
+
+	var req api.UserInviteRegenerateRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		// Allow empty body (io.EOF) - expiresIn is optional
+		if !errors.Is(err, io.EOF) {
+			util.WriteErrorResponse("couldn't parse JSON request", http.StatusBadRequest, w)
+			return
+		}
+	}
+
+	expiresIn := 0
+	if req.ExpiresIn != nil {
+		expiresIn = *req.ExpiresIn
+	}
+
+	result, err := h.accountManager.RegenerateUserInvite(r.Context(), userAuth.AccountId, userAuth.UserId, inviteID, expiresIn)
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	expiresAt := result.InviteExpiresAt.UTC()
+	util.WriteJSONObject(r.Context(), w, &api.UserInviteRegenerateResponse{
+		InviteToken:     result.InviteToken,
+		InviteExpiresAt: expiresAt,
+	})
+}
+
+// deleteInvite handles DELETE /api/users/invites/{inviteId}
+func (h *invitesHandler) deleteInvite(w http.ResponseWriter, r *http.Request) {
+
+	userAuth, err := nbcontext.GetUserAuthFromContext(r.Context())
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	vars := mux.Vars(r)
+	inviteID := vars["inviteId"]
+	if inviteID == "" {
+		util.WriteError(r.Context(), status.Errorf(status.InvalidArgument, "invite ID is required"), w)
+		return
+	}
+
+	err = h.accountManager.DeleteUserInvite(r.Context(), userAuth.AccountId, userAuth.UserId, inviteID)
+	if err != nil {
+		util.WriteError(r.Context(), err, w)
+		return
+	}
+
+	util.WriteJSONObject(r.Context(), w, util.EmptyObject{})
+}

management/server/http/handlers/users/invites_handler_test.go

@@ -0,0 +1,642 @@
+package users
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/gorilla/mux"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	nbcontext "github.com/netbirdio/netbird/management/server/context"
+	"github.com/netbirdio/netbird/management/server/mock_server"
+	"github.com/netbirdio/netbird/management/server/types"
+	"github.com/netbirdio/netbird/shared/auth"
+	"github.com/netbirdio/netbird/shared/management/http/api"
+	"github.com/netbirdio/netbird/shared/management/status"
+)
+
+const (
+	testAccountID   = "test-account-id"
+	testUserID      = "test-user-id"
+	testInviteID    = "test-invite-id"
+	testInviteToken = "nbi_testtoken123456789012345678"
+	testEmail       = "invite@example.com"
+	testName        = "Test User"
+)
+
+func setupInvitesTestHandler(am *mock_server.MockAccountManager) *invitesHandler {
+	return &invitesHandler{
+		accountManager: am,
+	}
+}
+
+func TestListInvites(t *testing.T) {
+	now := time.Now().UTC()
+	testInvites := []*types.UserInvite{
+		{
+			UserInfo: &types.UserInfo{
+				ID:         "invite-1",
+				Email:      "user1@example.com",
+				Name:       "User One",
+				Role:       "user",
+				AutoGroups: []string{"group-1"},
+			},
+			InviteExpiresAt: now.Add(24 * time.Hour),
+			InviteCreatedAt: now,
+		},
+		{
+			UserInfo: &types.UserInfo{
+				ID:         "invite-2",
+				Email:      "user2@example.com",
+				Name:       "User Two",
+				Role:       "admin",
+				AutoGroups: nil,
+			},
+			InviteExpiresAt: now.Add(-1 * time.Hour), // Expired
+			InviteCreatedAt: now.Add(-48 * time.Hour),
+		},
+	}
+
+	tt := []struct {
+		name           string
+		expectedStatus int
+		mockFunc       func(ctx context.Context, accountID, initiatorUserID string) ([]*types.UserInvite, error)
+		expectedCount  int
+	}{
+		{
+			name:           "successful list",
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID string) ([]*types.UserInvite, error) {
+				return testInvites, nil
+			},
+			expectedCount: 2,
+		},
+		{
+			name:           "empty list",
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID string) ([]*types.UserInvite, error) {
+				return []*types.UserInvite{}, nil
+			},
+			expectedCount: 0,
+		},
+		{
+			name:           "permission denied",
+			expectedStatus: http.StatusForbidden,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID string) ([]*types.UserInvite, error) {
+				return nil, status.NewPermissionDeniedError()
+			},
+			expectedCount: 0,
+		},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.name, func(t *testing.T) {
+			am := &mock_server.MockAccountManager{
+				ListUserInvitesFunc: tc.mockFunc,
+			}
+			handler := setupInvitesTestHandler(am)
+
+			req := httptest.NewRequest(http.MethodGet, "/api/users/invites", nil)
+			req = nbcontext.SetUserAuthInRequest(req, auth.UserAuth{
+				UserId:    testUserID,
+				AccountId: testAccountID,
+			})
+
+			rr := httptest.NewRecorder()
+			handler.listInvites(rr, req)
+
+			assert.Equal(t, tc.expectedStatus, rr.Code)
+
+			if tc.expectedStatus == http.StatusOK {
+				var resp []api.UserInvite
+				err := json.NewDecoder(rr.Body).Decode(&resp)
+				require.NoError(t, err)
+				assert.Len(t, resp, tc.expectedCount)
+			}
+		})
+	}
+}
+
+func TestCreateInvite(t *testing.T) {
+	now := time.Now().UTC()
+	expiresAt := now.Add(72 * time.Hour)
+
+	tt := []struct {
+		name           string
+		requestBody    string
+		expectedStatus int
+		mockFunc       func(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error)
+	}{
+		{
+			name:           "successful create",
+			requestBody:    `{"email":"test@example.com","name":"Test User","role":"user","auto_groups":["group-1"]}`,
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error) {
+				return &types.UserInvite{
+					UserInfo: &types.UserInfo{
+						ID:         testInviteID,
+						Email:      invite.Email,
+						Name:       invite.Name,
+						Role:       invite.Role,
+						AutoGroups: invite.AutoGroups,
+						Status:     string(types.UserStatusInvited),
+					},
+					InviteToken:     testInviteToken,
+					InviteExpiresAt: expiresAt,
+				}, nil
+			},
+		},
+		{
+			name:           "successful create with custom expiration",
+			requestBody:    `{"email":"test@example.com","name":"Test User","role":"admin","auto_groups":[],"expires_in":3600}`,
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error) {
+				assert.Equal(t, 3600, expiresIn)
+				return &types.UserInvite{
+					UserInfo: &types.UserInfo{
+						ID:         testInviteID,
+						Email:      invite.Email,
+						Name:       invite.Name,
+						Role:       invite.Role,
+						AutoGroups: []string{},
+						Status:     string(types.UserStatusInvited),
+					},
+					InviteToken:     testInviteToken,
+					InviteExpiresAt: expiresAt,
+				}, nil
+			},
+		},
+		{
+			name:           "user already exists",
+			requestBody:    `{"email":"existing@example.com","name":"Existing User","role":"user","auto_groups":[]}`,
+			expectedStatus: http.StatusConflict,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error) {
+				return nil, status.Errorf(status.UserAlreadyExists, "user with this email already exists")
+			},
+		},
+		{
+			name:           "invite already exists",
+			requestBody:    `{"email":"invited@example.com","name":"Invited User","role":"user","auto_groups":[]}`,
+			expectedStatus: http.StatusConflict,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error) {
+				return nil, status.Errorf(status.AlreadyExists, "invite already exists for this email")
+			},
+		},
+		{
+			name:           "permission denied",
+			requestBody:    `{"email":"test@example.com","name":"Test User","role":"user","auto_groups":[]}`,
+			expectedStatus: http.StatusForbidden,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error) {
+				return nil, status.NewPermissionDeniedError()
+			},
+		},
+		{
+			name:           "embedded IDP not enabled",
+			requestBody:    `{"email":"test@example.com","name":"Test User","role":"user","auto_groups":[]}`,
+			expectedStatus: http.StatusPreconditionFailed,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error) {
+				return nil, status.Errorf(status.PreconditionFailed, "invite links are only available with embedded identity provider")
+			},
+		},
+		{
+			name:           "invalid JSON",
+			requestBody:    `{invalid json}`,
+			expectedStatus: http.StatusBadRequest,
+			mockFunc:       nil,
+		},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.name, func(t *testing.T) {
+			am := &mock_server.MockAccountManager{
+				CreateUserInviteFunc: tc.mockFunc,
+			}
+			handler := setupInvitesTestHandler(am)
+
+			req := httptest.NewRequest(http.MethodPost, "/api/users/invites", bytes.NewBufferString(tc.requestBody))
+			req = nbcontext.SetUserAuthInRequest(req, auth.UserAuth{
+				UserId:    testUserID,
+				AccountId: testAccountID,
+			})
+
+			rr := httptest.NewRecorder()
+			handler.createInvite(rr, req)
+
+			assert.Equal(t, tc.expectedStatus, rr.Code)
+
+			if tc.expectedStatus == http.StatusOK {
+				var resp api.UserInvite
+				err := json.NewDecoder(rr.Body).Decode(&resp)
+				require.NoError(t, err)
+				assert.Equal(t, testInviteID, resp.Id)
+				assert.NotNil(t, resp.InviteToken)
+				assert.NotEmpty(t, *resp.InviteToken)
+			}
+		})
+	}
+}
+
+func TestGetInviteInfo(t *testing.T) {
+	now := time.Now().UTC()
+
+	tt := []struct {
+		name           string
+		token          string
+		expectedStatus int
+		mockFunc       func(ctx context.Context, token string) (*types.UserInviteInfo, error)
+	}{
+		{
+			name:           "successful get valid invite",
+			token:          testInviteToken,
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, token string) (*types.UserInviteInfo, error) {
+				return &types.UserInviteInfo{
+					Email:     testEmail,
+					Name:      testName,
+					ExpiresAt: now.Add(24 * time.Hour),
+					Valid:     true,
+					InvitedBy: "Admin User",
+				}, nil
+			},
+		},
+		{
+			name:           "successful get expired invite",
+			token:          testInviteToken,
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, token string) (*types.UserInviteInfo, error) {
+				return &types.UserInviteInfo{
+					Email:     testEmail,
+					Name:      testName,
+					ExpiresAt: now.Add(-24 * time.Hour),
+					Valid:     false,
+					InvitedBy: "Admin User",
+				}, nil
+			},
+		},
+		{
+			name:           "invite not found",
+			token:          "nbi_invalidtoken1234567890123456",
+			expectedStatus: http.StatusNotFound,
+			mockFunc: func(ctx context.Context, token string) (*types.UserInviteInfo, error) {
+				return nil, status.Errorf(status.NotFound, "invite not found")
+			},
+		},
+		{
+			name:           "invalid token format",
+			token:          "invalid",
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc: func(ctx context.Context, token string) (*types.UserInviteInfo, error) {
+				return nil, status.Errorf(status.InvalidArgument, "invalid invite token")
+			},
+		},
+		{
+			name:           "missing token",
+			token:          "",
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc:       nil,
+		},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.name, func(t *testing.T) {
+			am := &mock_server.MockAccountManager{
+				GetUserInviteInfoFunc: tc.mockFunc,
+			}
+			handler := setupInvitesTestHandler(am)
+
+			req := httptest.NewRequest(http.MethodGet, "/api/users/invites/"+tc.token, nil)
+			if tc.token != "" {
+				req = mux.SetURLVars(req, map[string]string{"token": tc.token})
+			}
+
+			rr := httptest.NewRecorder()
+			handler.getInviteInfo(rr, req)
+
+			assert.Equal(t, tc.expectedStatus, rr.Code)
+
+			if tc.expectedStatus == http.StatusOK {
+				var resp api.UserInviteInfo
+				err := json.NewDecoder(rr.Body).Decode(&resp)
+				require.NoError(t, err)
+				assert.Equal(t, testEmail, resp.Email)
+				assert.Equal(t, testName, resp.Name)
+			}
+		})
+	}
+}
+
+func TestAcceptInvite(t *testing.T) {
+	tt := []struct {
+		name           string
+		token          string
+		requestBody    string
+		expectedStatus int
+		mockFunc       func(ctx context.Context, token, password string) error
+	}{
+		{
+			name:           "successful accept",
+			token:          testInviteToken,
+			requestBody:    `{"password":"SecurePass123!"}`,
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, token, password string) error {
+				return nil
+			},
+		},
+		{
+			name:           "invite not found",
+			token:          "nbi_invalidtoken1234567890123456",
+			requestBody:    `{"password":"SecurePass123!"}`,
+			expectedStatus: http.StatusNotFound,
+			mockFunc: func(ctx context.Context, token, password string) error {
+				return status.Errorf(status.NotFound, "invite not found")
+			},
+		},
+		{
+			name:           "invite expired",
+			token:          testInviteToken,
+			requestBody:    `{"password":"SecurePass123!"}`,
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc: func(ctx context.Context, token, password string) error {
+				return status.Errorf(status.InvalidArgument, "invite has expired")
+			},
+		},
+		{
+			name:           "embedded IDP not enabled",
+			token:          testInviteToken,
+			requestBody:    `{"password":"SecurePass123!"}`,
+			expectedStatus: http.StatusPreconditionFailed,
+			mockFunc: func(ctx context.Context, token, password string) error {
+				return status.Errorf(status.PreconditionFailed, "invite links are only available with embedded identity provider")
+			},
+		},
+		{
+			name:           "missing token",
+			token:          "",
+			requestBody:    `{"password":"SecurePass123!"}`,
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc:       nil,
+		},
+		{
+			name:           "invalid JSON",
+			token:          testInviteToken,
+			requestBody:    `{invalid}`,
+			expectedStatus: http.StatusBadRequest,
+			mockFunc:       nil,
+		},
+		{
+			name:           "password too short",
+			token:          testInviteToken,
+			requestBody:    `{"password":"Short1!"}`,
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc: func(ctx context.Context, token, password string) error {
+				return status.Errorf(status.InvalidArgument, "password must be at least 8 characters long")
+			},
+		},
+		{
+			name:           "password missing digit",
+			token:          testInviteToken,
+			requestBody:    `{"password":"NoDigitPass!"}`,
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc: func(ctx context.Context, token, password string) error {
+				return status.Errorf(status.InvalidArgument, "password must contain at least one digit")
+			},
+		},
+		{
+			name:           "password missing uppercase",
+			token:          testInviteToken,
+			requestBody:    `{"password":"nouppercase1!"}`,
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc: func(ctx context.Context, token, password string) error {
+				return status.Errorf(status.InvalidArgument, "password must contain at least one uppercase letter")
+			},
+		},
+		{
+			name:           "password missing special character",
+			token:          testInviteToken,
+			requestBody:    `{"password":"NoSpecial123"}`,
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc: func(ctx context.Context, token, password string) error {
+				return status.Errorf(status.InvalidArgument, "password must contain at least one special character")
+			},
+		},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.name, func(t *testing.T) {
+			am := &mock_server.MockAccountManager{
+				AcceptUserInviteFunc: tc.mockFunc,
+			}
+			handler := setupInvitesTestHandler(am)
+
+			req := httptest.NewRequest(http.MethodPost, "/api/users/invites/"+tc.token+"/accept", bytes.NewBufferString(tc.requestBody))
+			if tc.token != "" {
+				req = mux.SetURLVars(req, map[string]string{"token": tc.token})
+			}
+
+			rr := httptest.NewRecorder()
+			handler.acceptInvite(rr, req)
+
+			assert.Equal(t, tc.expectedStatus, rr.Code)
+
+			if tc.expectedStatus == http.StatusOK {
+				var resp api.UserInviteAcceptResponse
+				err := json.NewDecoder(rr.Body).Decode(&resp)
+				require.NoError(t, err)
+				assert.True(t, resp.Success)
+			}
+		})
+	}
+}
+
+func TestRegenerateInvite(t *testing.T) {
+	now := time.Now().UTC()
+	expiresAt := now.Add(72 * time.Hour)
+
+	tt := []struct {
+		name           string
+		inviteID       string
+		requestBody    string
+		expectedStatus int
+		mockFunc       func(ctx context.Context, accountID, initiatorUserID, inviteID string, expiresIn int) (*types.UserInvite, error)
+	}{
+		{
+			name:           "successful regenerate with empty body",
+			inviteID:       testInviteID,
+			requestBody:    "",
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID, inviteID string, expiresIn int) (*types.UserInvite, error) {
+				assert.Equal(t, 0, expiresIn)
+				return &types.UserInvite{
+					UserInfo: &types.UserInfo{
+						ID:    inviteID,
+						Email: testEmail,
+					},
+					InviteToken:     "nbi_newtoken12345678901234567890",
+					InviteExpiresAt: expiresAt,
+				}, nil
+			},
+		},
+		{
+			name:           "successful regenerate with custom expiration",
+			inviteID:       testInviteID,
+			requestBody:    `{"expires_in":7200}`,
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID, inviteID string, expiresIn int) (*types.UserInvite, error) {
+				assert.Equal(t, 7200, expiresIn)
+				return &types.UserInvite{
+					UserInfo: &types.UserInfo{
+						ID:    inviteID,
+						Email: testEmail,
+					},
+					InviteToken:     "nbi_newtoken12345678901234567890",
+					InviteExpiresAt: expiresAt,
+				}, nil
+			},
+		},
+		{
+			name:           "invite not found",
+			inviteID:       "non-existent-invite",
+			requestBody:    "",
+			expectedStatus: http.StatusNotFound,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID, inviteID string, expiresIn int) (*types.UserInvite, error) {
+				return nil, status.Errorf(status.NotFound, "invite not found")
+			},
+		},
+		{
+			name:           "permission denied",
+			inviteID:       testInviteID,
+			requestBody:    "",
+			expectedStatus: http.StatusForbidden,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID, inviteID string, expiresIn int) (*types.UserInvite, error) {
+				return nil, status.NewPermissionDeniedError()
+			},
+		},
+		{
+			name:           "missing invite ID",
+			inviteID:       "",
+			requestBody:    "",
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc:       nil,
+		},
+		{
+			name:           "invalid JSON should return error",
+			inviteID:       testInviteID,
+			requestBody:    `{invalid json}`,
+			expectedStatus: http.StatusBadRequest,
+			mockFunc:       nil,
+		},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.name, func(t *testing.T) {
+			am := &mock_server.MockAccountManager{
+				RegenerateUserInviteFunc: tc.mockFunc,
+			}
+			handler := setupInvitesTestHandler(am)
+
+			var body io.Reader
+			if tc.requestBody != "" {
+				body = bytes.NewBufferString(tc.requestBody)
+			}
+
+			req := httptest.NewRequest(http.MethodPost, "/api/users/invites/"+tc.inviteID+"/regenerate", body)
+			req = nbcontext.SetUserAuthInRequest(req, auth.UserAuth{
+				UserId:    testUserID,
+				AccountId: testAccountID,
+			})
+			if tc.inviteID != "" {
+				req = mux.SetURLVars(req, map[string]string{"inviteId": tc.inviteID})
+			}
+
+			rr := httptest.NewRecorder()
+			handler.regenerateInvite(rr, req)
+
+			assert.Equal(t, tc.expectedStatus, rr.Code)
+
+			if tc.expectedStatus == http.StatusOK {
+				var resp api.UserInviteRegenerateResponse
+				err := json.NewDecoder(rr.Body).Decode(&resp)
+				require.NoError(t, err)
+				assert.NotEmpty(t, resp.InviteToken)
+			}
+		})
+	}
+}
+
+func TestDeleteInvite(t *testing.T) {
+	tt := []struct {
+		name           string
+		inviteID       string
+		expectedStatus int
+		mockFunc       func(ctx context.Context, accountID, initiatorUserID, inviteID string) error
+	}{
+		{
+			name:           "successful delete",
+			inviteID:       testInviteID,
+			expectedStatus: http.StatusOK,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID, inviteID string) error {
+				return nil
+			},
+		},
+		{
+			name:           "invite not found",
+			inviteID:       "non-existent-invite",
+			expectedStatus: http.StatusNotFound,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID, inviteID string) error {
+				return status.Errorf(status.NotFound, "invite not found")
+			},
+		},
+		{
+			name:           "permission denied",
+			inviteID:       testInviteID,
+			expectedStatus: http.StatusForbidden,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID, inviteID string) error {
+				return status.NewPermissionDeniedError()
+			},
+		},
+		{
+			name:           "embedded IDP not enabled",
+			inviteID:       testInviteID,
+			expectedStatus: http.StatusPreconditionFailed,
+			mockFunc: func(ctx context.Context, accountID, initiatorUserID, inviteID string) error {
+				return status.Errorf(status.PreconditionFailed, "invite links are only available with embedded identity provider")
+			},
+		},
+		{
+			name:           "missing invite ID",
+			inviteID:       "",
+			expectedStatus: http.StatusUnprocessableEntity,
+			mockFunc:       nil,
+		},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.name, func(t *testing.T) {
+			am := &mock_server.MockAccountManager{
+				DeleteUserInviteFunc: tc.mockFunc,
+			}
+			handler := setupInvitesTestHandler(am)
+
+			req := httptest.NewRequest(http.MethodDelete, "/api/users/invites/"+tc.inviteID, nil)
+			req = nbcontext.SetUserAuthInRequest(req, auth.UserAuth{
+				UserId:    testUserID,
+				AccountId: testAccountID,
+			})
+			if tc.inviteID != "" {
+				req = mux.SetURLVars(req, map[string]string{"inviteId": tc.inviteID})
+			}
+
+			rr := httptest.NewRecorder()
+			handler.deleteInvite(rr, req)
+
+			assert.Equal(t, tc.expectedStatus, rr.Code)
+		})
+	}
+}

management/server/http/middleware/rate_limiter.go

@@ -2,10 +2,14 @@ package middleware
 
 import (
 	"context"
+	"net"
+	"net/http"
 	"sync"
 	"time"
 
 	"golang.org/x/time/rate"
+
+	"github.com/netbirdio/netbird/shared/management/http/util"
 )
 
 // RateLimiterConfig holds configuration for the API rate limiter
@@ -144,3 +148,25 @@ func (rl *APIRateLimiter) Reset(key string) {
 	defer rl.mu.Unlock()
 	delete(rl.limiters, key)
 }
+
+// Middleware returns an HTTP middleware that rate limits requests by client IP.
+// Returns 429 Too Many Requests if the rate limit is exceeded.
+func (rl *APIRateLimiter) Middleware(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		clientIP := getClientIP(r)
+		if !rl.Allow(clientIP) {
+			util.WriteErrorResponse("rate limit exceeded, please try again later", http.StatusTooManyRequests, w)
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}
+
+// getClientIP extracts the client IP address from the request.
+func getClientIP(r *http.Request) string {
+	ip, _, err := net.SplitHostPort(r.RemoteAddr)
+	if err != nil {
+		return r.RemoteAddr
+	}
+	return ip
+}

management/server/http/middleware/rate_limiter_test.go

@@ -0,0 +1,158 @@
+package middleware
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAPIRateLimiter_Allow(t *testing.T) {
+	rl := NewAPIRateLimiter(&RateLimiterConfig{
+		RequestsPerMinute: 60, // 1 per second
+		Burst:             2,
+		CleanupInterval:   time.Minute,
+		LimiterTTL:        time.Minute,
+	})
+	defer rl.Stop()
+
+	// First two requests should be allowed (burst)
+	assert.True(t, rl.Allow("test-key"))
+	assert.True(t, rl.Allow("test-key"))
+
+	// Third request should be denied (exceeded burst)
+	assert.False(t, rl.Allow("test-key"))
+
+	// Different key should be allowed
+	assert.True(t, rl.Allow("different-key"))
+}
+
+func TestAPIRateLimiter_Middleware(t *testing.T) {
+	rl := NewAPIRateLimiter(&RateLimiterConfig{
+		RequestsPerMinute: 60, // 1 per second
+		Burst:             2,
+		CleanupInterval:   time.Minute,
+		LimiterTTL:        time.Minute,
+	})
+	defer rl.Stop()
+
+	// Create a simple handler that returns 200 OK
+	nextHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+	})
+
+	// Wrap with rate limiter middleware
+	handler := rl.Middleware(nextHandler)
+
+	// First two requests should pass (burst)
+	for i := 0; i < 2; i++ {
+		req := httptest.NewRequest(http.MethodGet, "/test", nil)
+		req.RemoteAddr = "192.168.1.1:12345"
+		rr := httptest.NewRecorder()
+		handler.ServeHTTP(rr, req)
+		assert.Equal(t, http.StatusOK, rr.Code, "request %d should be allowed", i+1)
+	}
+
+	// Third request should be rate limited
+	req := httptest.NewRequest(http.MethodGet, "/test", nil)
+	req.RemoteAddr = "192.168.1.1:12345"
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	assert.Equal(t, http.StatusTooManyRequests, rr.Code)
+}
+
+func TestAPIRateLimiter_Middleware_DifferentIPs(t *testing.T) {
+	rl := NewAPIRateLimiter(&RateLimiterConfig{
+		RequestsPerMinute: 60,
+		Burst:             1,
+		CleanupInterval:   time.Minute,
+		LimiterTTL:        time.Minute,
+	})
+	defer rl.Stop()
+
+	nextHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+	})
+
+	handler := rl.Middleware(nextHandler)
+
+	// Request from first IP
+	req1 := httptest.NewRequest(http.MethodGet, "/test", nil)
+	req1.RemoteAddr = "192.168.1.1:12345"
+	rr1 := httptest.NewRecorder()
+	handler.ServeHTTP(rr1, req1)
+	assert.Equal(t, http.StatusOK, rr1.Code)
+
+	// Second request from first IP should be rate limited
+	req2 := httptest.NewRequest(http.MethodGet, "/test", nil)
+	req2.RemoteAddr = "192.168.1.1:12345"
+	rr2 := httptest.NewRecorder()
+	handler.ServeHTTP(rr2, req2)
+	assert.Equal(t, http.StatusTooManyRequests, rr2.Code)
+
+	// Request from different IP should be allowed
+	req3 := httptest.NewRequest(http.MethodGet, "/test", nil)
+	req3.RemoteAddr = "192.168.1.2:12345"
+	rr3 := httptest.NewRecorder()
+	handler.ServeHTTP(rr3, req3)
+	assert.Equal(t, http.StatusOK, rr3.Code)
+}
+
+func TestGetClientIP(t *testing.T) {
+	tests := []struct {
+		name       string
+		remoteAddr string
+		expected   string
+	}{
+		{
+			name:       "remote addr with port",
+			remoteAddr: "192.168.1.1:12345",
+			expected:   "192.168.1.1",
+		},
+		{
+			name:       "remote addr without port",
+			remoteAddr: "192.168.1.1",
+			expected:   "192.168.1.1",
+		},
+		{
+			name:       "IPv6 with port",
+			remoteAddr: "[::1]:12345",
+			expected:   "::1",
+		},
+		{
+			name:       "IPv6 without port",
+			remoteAddr: "::1",
+			expected:   "::1",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			req := httptest.NewRequest(http.MethodGet, "/test", nil)
+			req.RemoteAddr = tc.remoteAddr
+			assert.Equal(t, tc.expected, getClientIP(req))
+		})
+	}
+}
+
+func TestAPIRateLimiter_Reset(t *testing.T) {
+	rl := NewAPIRateLimiter(&RateLimiterConfig{
+		RequestsPerMinute: 60,
+		Burst:             1,
+		CleanupInterval:   time.Minute,
+		LimiterTTL:        time.Minute,
+	})
+	defer rl.Stop()
+
+	// Use up the burst
+	assert.True(t, rl.Allow("test-key"))
+	assert.False(t, rl.Allow("test-key"))
+
+	// Reset the limiter
+	rl.Reset("test-key")
+
+	// Should be allowed again
+	assert.True(t, rl.Allow("test-key"))
+}

management/server/idp/embedded.go

@@ -20,7 +20,7 @@ const (
 	staticClientCLI        = "netbird-cli"
 	defaultCLIRedirectURL1 = "http://localhost:53000/"
 	defaultCLIRedirectURL2 = "http://localhost:54000/"
-	defaultScopes          = "openid profile email"
+	defaultScopes          = "openid profile email groups"
 	defaultUserIDClaim     = "sub"
 )
 

management/server/instance/manager.go

@@ -2,18 +2,54 @@ package instance
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
+	"io"
+	"net/http"
 	"net/mail"
+	"strings"
 	"sync"
+	"time"
 
+	goversion "github.com/hashicorp/go-version"
 	log "github.com/sirupsen/logrus"
 
 	"github.com/netbirdio/netbird/management/server/idp"
 	"github.com/netbirdio/netbird/management/server/store"
 	"github.com/netbirdio/netbird/shared/management/status"
+	"github.com/netbirdio/netbird/version"
 )
 
+const (
+	// Version endpoints
+	managementVersionURL = "https://pkgs.netbird.io/releases/latest/version"
+	dashboardReleasesURL = "https://api.github.com/repos/netbirdio/dashboard/releases/latest"
+
+	// Cache TTL for version information
+	versionCacheTTL = 60 * time.Minute
+
+	// HTTP client timeout
+	httpTimeout = 5 * time.Second
+)
+
+// VersionInfo contains version information for NetBird components
+type VersionInfo struct {
+	// CurrentVersion is the running management server version
+	CurrentVersion string
+	// DashboardVersion is the latest available dashboard version from GitHub
+	DashboardVersion string
+	// ManagementVersion is the latest available management version from GitHub
+	ManagementVersion string
+	// ManagementUpdateAvailable indicates if a newer management version is available
+	ManagementUpdateAvailable bool
+}
+
+// githubRelease represents a GitHub release response
+type githubRelease struct {
+	TagName string `json:"tag_name"`
+}
+
 // Manager handles instance-level operations like initial setup.
 type Manager interface {
 	// IsSetupRequired checks if instance setup is required.
@@ -23,6 +59,9 @@ type Manager interface {
 	// CreateOwnerUser creates the initial owner user in the embedded IDP.
 	// This should only be called when IsSetupRequired returns true.
 	CreateOwnerUser(ctx context.Context, email, password, name string) (*idp.UserData, error)
+
+	// GetVersionInfo returns version information for NetBird components.
+	GetVersionInfo(ctx context.Context) (*VersionInfo, error)
 }
 
 // DefaultManager is the default implementation of Manager.
@@ -32,6 +71,12 @@ type DefaultManager struct {
 
 	setupRequired bool
 	setupMu       sync.RWMutex
+
+	// Version caching
+	httpClient       *http.Client
+	versionMu        sync.RWMutex
+	cachedVersions   *VersionInfo
+	lastVersionFetch time.Time
 }
 
 // NewManager creates a new instance manager.
@@ -43,6 +88,9 @@ func NewManager(ctx context.Context, store store.Store, idpManager idp.Manager)
 		store:              store,
 		embeddedIdpManager: embeddedIdp,
 		setupRequired:      false,
+		httpClient: &http.Client{
+			Timeout: httpTimeout,
+		},
 	}
 
 	if embeddedIdp != nil {
@@ -134,3 +182,130 @@ func (m *DefaultManager) validateSetupInfo(email, password, name string) error {
 	}
 	return nil
 }
+
+// GetVersionInfo returns version information for NetBird components.
+func (m *DefaultManager) GetVersionInfo(ctx context.Context) (*VersionInfo, error) {
+	m.versionMu.RLock()
+	if m.cachedVersions != nil && time.Since(m.lastVersionFetch) < versionCacheTTL {
+		cached := *m.cachedVersions
+		m.versionMu.RUnlock()
+		return &cached, nil
+	}
+	m.versionMu.RUnlock()
+
+	return m.fetchVersionInfo(ctx)
+}
+
+func (m *DefaultManager) fetchVersionInfo(ctx context.Context) (*VersionInfo, error) {
+	m.versionMu.Lock()
+	// Double-check after acquiring write lock
+	if m.cachedVersions != nil && time.Since(m.lastVersionFetch) < versionCacheTTL {
+		cached := *m.cachedVersions
+		m.versionMu.Unlock()
+		return &cached, nil
+	}
+	m.versionMu.Unlock()
+
+	info := &VersionInfo{
+		CurrentVersion: version.NetbirdVersion(),
+	}
+
+	// Fetch management version from pkgs.netbird.io (plain text)
+	mgmtVersion, err := m.fetchPlainTextVersion(ctx, managementVersionURL)
+	if err != nil {
+		log.WithContext(ctx).Warnf("failed to fetch management version: %v", err)
+	} else {
+		info.ManagementVersion = mgmtVersion
+		info.ManagementUpdateAvailable = isNewerVersion(info.CurrentVersion, mgmtVersion)
+	}
+
+	// Fetch dashboard version from GitHub
+	dashVersion, err := m.fetchGitHubRelease(ctx, dashboardReleasesURL)
+	if err != nil {
+		log.WithContext(ctx).Warnf("failed to fetch dashboard version from GitHub: %v", err)
+	} else {
+		info.DashboardVersion = dashVersion
+	}
+
+	// Update cache
+	m.versionMu.Lock()
+	m.cachedVersions = info
+	m.lastVersionFetch = time.Now()
+	m.versionMu.Unlock()
+
+	return info, nil
+}
+
+// isNewerVersion returns true if latestVersion is greater than currentVersion
+func isNewerVersion(currentVersion, latestVersion string) bool {
+	current, err := goversion.NewVersion(currentVersion)
+	if err != nil {
+		return false
+	}
+
+	latest, err := goversion.NewVersion(latestVersion)
+	if err != nil {
+		return false
+	}
+
+	return latest.GreaterThan(current)
+}
+
+func (m *DefaultManager) fetchPlainTextVersion(ctx context.Context, url string) (string, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return "", fmt.Errorf("create request: %w", err)
+	}
+
+	req.Header.Set("User-Agent", "NetBird-Management/"+version.NetbirdVersion())
+
+	resp, err := m.httpClient.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("execute request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("unexpected status code: %d", resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(io.LimitReader(resp.Body, 100))
+	if err != nil {
+		return "", fmt.Errorf("read response: %w", err)
+	}
+
+	return strings.TrimSpace(string(body)), nil
+}
+
+func (m *DefaultManager) fetchGitHubRelease(ctx context.Context, url string) (string, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return "", fmt.Errorf("create request: %w", err)
+	}
+
+	req.Header.Set("Accept", "application/vnd.github.v3+json")
+	req.Header.Set("User-Agent", "NetBird-Management/"+version.NetbirdVersion())
+
+	resp, err := m.httpClient.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("execute request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("unexpected status code: %d", resp.StatusCode)
+	}
+
+	var release githubRelease
+	if err := json.NewDecoder(resp.Body).Decode(&release); err != nil {
+		return "", fmt.Errorf("decode response: %w", err)
+	}
+
+	// Remove 'v' prefix if present
+	tag := release.TagName
+	if len(tag) > 0 && tag[0] == 'v' {
+		tag = tag[1:]
+	}
+
+	return tag, nil
+}

management/server/instance/version_test.go

@@ -0,0 +1,285 @@
+package instance
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// mockRoundTripper implements http.RoundTripper for testing
+type mockRoundTripper struct {
+	callCount         atomic.Int32
+	managementVersion string
+	dashboardVersion  string
+}
+
+func (m *mockRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
+	m.callCount.Add(1)
+
+	var body string
+	if strings.Contains(req.URL.String(), "pkgs.netbird.io") {
+		// Plain text response for management version
+		body = m.managementVersion
+	} else if strings.Contains(req.URL.String(), "github.com") {
+		// JSON response for dashboard version
+		jsonResp, _ := json.Marshal(githubRelease{TagName: "v" + m.dashboardVersion})
+		body = string(jsonResp)
+	}
+
+	return &http.Response{
+		StatusCode: http.StatusOK,
+		Body:       io.NopCloser(bytes.NewBufferString(body)),
+		Header:     make(http.Header),
+	}, nil
+}
+
+func TestDefaultManager_GetVersionInfo_ReturnsCurrentVersion(t *testing.T) {
+	mockTransport := &mockRoundTripper{
+		managementVersion: "0.65.0",
+		dashboardVersion:  "2.10.0",
+	}
+
+	m := &DefaultManager{
+		httpClient: &http.Client{Transport: mockTransport},
+	}
+
+	ctx := context.Background()
+
+	info, err := m.GetVersionInfo(ctx)
+	require.NoError(t, err)
+
+	// CurrentVersion should always be set
+	assert.NotEmpty(t, info.CurrentVersion)
+	assert.Equal(t, "0.65.0", info.ManagementVersion)
+	assert.Equal(t, "2.10.0", info.DashboardVersion)
+	assert.Equal(t, int32(2), mockTransport.callCount.Load()) // 2 calls: management + dashboard
+}
+
+func TestDefaultManager_GetVersionInfo_CachesResults(t *testing.T) {
+	mockTransport := &mockRoundTripper{
+		managementVersion: "0.65.0",
+		dashboardVersion:  "2.10.0",
+	}
+
+	m := &DefaultManager{
+		httpClient: &http.Client{Transport: mockTransport},
+	}
+
+	ctx := context.Background()
+
+	// First call
+	info1, err := m.GetVersionInfo(ctx)
+	require.NoError(t, err)
+	assert.NotEmpty(t, info1.CurrentVersion)
+	assert.Equal(t, "0.65.0", info1.ManagementVersion)
+
+	initialCallCount := mockTransport.callCount.Load()
+
+	// Second call should use cache (no additional HTTP calls)
+	info2, err := m.GetVersionInfo(ctx)
+	require.NoError(t, err)
+	assert.Equal(t, info1.CurrentVersion, info2.CurrentVersion)
+	assert.Equal(t, info1.ManagementVersion, info2.ManagementVersion)
+	assert.Equal(t, info1.DashboardVersion, info2.DashboardVersion)
+
+	// Verify no additional HTTP calls were made (cache was used)
+	assert.Equal(t, initialCallCount, mockTransport.callCount.Load())
+}
+
+func TestDefaultManager_FetchGitHubRelease_ParsesTagName(t *testing.T) {
+	tests := []struct {
+		name        string
+		tagName     string
+		expected    string
+		shouldError bool
+	}{
+		{
+			name:     "tag with v prefix",
+			tagName:  "v1.2.3",
+			expected: "1.2.3",
+		},
+		{
+			name:     "tag without v prefix",
+			tagName:  "1.2.3",
+			expected: "1.2.3",
+		},
+		{
+			name:     "tag with prerelease",
+			tagName:  "v2.0.0-beta.1",
+			expected: "2.0.0-beta.1",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("Content-Type", "application/json")
+				_ = json.NewEncoder(w).Encode(githubRelease{TagName: tc.tagName})
+			}))
+			defer server.Close()
+
+			m := &DefaultManager{
+				httpClient: &http.Client{Timeout: 5 * time.Second},
+			}
+
+			version, err := m.fetchGitHubRelease(context.Background(), server.URL)
+
+			if tc.shouldError {
+				assert.Error(t, err)
+			} else {
+				require.NoError(t, err)
+				assert.Equal(t, tc.expected, version)
+			}
+		})
+	}
+}
+
+func TestDefaultManager_FetchGitHubRelease_HandlesErrors(t *testing.T) {
+	tests := []struct {
+		name       string
+		statusCode int
+		body       string
+	}{
+		{
+			name:       "not found",
+			statusCode: http.StatusNotFound,
+			body:       `{"message": "Not Found"}`,
+		},
+		{
+			name:       "rate limited",
+			statusCode: http.StatusForbidden,
+			body:       `{"message": "API rate limit exceeded"}`,
+		},
+		{
+			name:       "server error",
+			statusCode: http.StatusInternalServerError,
+			body:       `{"message": "Internal Server Error"}`,
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				w.WriteHeader(tc.statusCode)
+				_, _ = w.Write([]byte(tc.body))
+			}))
+			defer server.Close()
+
+			m := &DefaultManager{
+				httpClient: &http.Client{Timeout: 5 * time.Second},
+			}
+
+			_, err := m.fetchGitHubRelease(context.Background(), server.URL)
+			assert.Error(t, err)
+		})
+	}
+}
+
+func TestDefaultManager_FetchGitHubRelease_InvalidJSON(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{invalid json}`))
+	}))
+	defer server.Close()
+
+	m := &DefaultManager{
+		httpClient: &http.Client{Timeout: 5 * time.Second},
+	}
+
+	_, err := m.fetchGitHubRelease(context.Background(), server.URL)
+	assert.Error(t, err)
+}
+
+func TestDefaultManager_FetchGitHubRelease_ContextCancellation(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		time.Sleep(1 * time.Second)
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(githubRelease{TagName: "v1.0.0"})
+	}))
+	defer server.Close()
+
+	m := &DefaultManager{
+		httpClient: &http.Client{Timeout: 5 * time.Second},
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel() // Cancel immediately
+
+	_, err := m.fetchGitHubRelease(ctx, server.URL)
+	assert.Error(t, err)
+}
+
+func TestIsNewerVersion(t *testing.T) {
+	tests := []struct {
+		name           string
+		currentVersion string
+		latestVersion  string
+		expected       bool
+	}{
+		{
+			name:           "latest is newer - minor version",
+			currentVersion: "0.64.1",
+			latestVersion:  "0.65.0",
+			expected:       true,
+		},
+		{
+			name:           "latest is newer - patch version",
+			currentVersion: "0.64.1",
+			latestVersion:  "0.64.2",
+			expected:       true,
+		},
+		{
+			name:           "latest is newer - major version",
+			currentVersion: "0.64.1",
+			latestVersion:  "1.0.0",
+			expected:       true,
+		},
+		{
+			name:           "versions are equal",
+			currentVersion: "0.64.1",
+			latestVersion:  "0.64.1",
+			expected:       false,
+		},
+		{
+			name:           "current is newer - minor version",
+			currentVersion: "0.65.0",
+			latestVersion:  "0.64.1",
+			expected:       false,
+		},
+		{
+			name:           "current is newer - patch version",
+			currentVersion: "0.64.2",
+			latestVersion:  "0.64.1",
+			expected:       false,
+		},
+		{
+			name:           "development version",
+			currentVersion: "development",
+			latestVersion:  "0.65.0",
+			expected:       false,
+		},
+		{
+			name:           "invalid latest version",
+			currentVersion: "0.64.1",
+			latestVersion:  "invalid",
+			expected:       false,
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			result := isNewerVersion(tc.currentVersion, tc.latestVersion)
+			assert.Equal(t, tc.expected, result)
+		})
+	}
+}

management/server/mock_server/account_mock.go

@@ -139,6 +139,12 @@ type MockAccountManager struct {
 	CreatePeerJobFunc          func(ctx context.Context, accountID, peerID, userID string, job *types.Job) error
 	GetAllPeerJobsFunc         func(ctx context.Context, accountID, userID, peerID string) ([]*types.Job, error)
 	GetPeerJobByIDFunc         func(ctx context.Context, accountID, userID, peerID, jobID string) (*types.Job, error)
+	CreateUserInviteFunc       func(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error)
+	AcceptUserInviteFunc       func(ctx context.Context, token, password string) error
+	RegenerateUserInviteFunc   func(ctx context.Context, accountID, initiatorUserID, inviteID string, expiresIn int) (*types.UserInvite, error)
+	GetUserInviteInfoFunc      func(ctx context.Context, token string) (*types.UserInviteInfo, error)
+	ListUserInvitesFunc        func(ctx context.Context, accountID, initiatorUserID string) ([]*types.UserInvite, error)
+	DeleteUserInviteFunc       func(ctx context.Context, accountID, initiatorUserID, inviteID string) error
 }
 
 func (am *MockAccountManager) CreatePeerJob(ctx context.Context, accountID, peerID, userID string, job *types.Job) error {
@@ -713,6 +719,48 @@ func (am *MockAccountManager) CreateUser(ctx context.Context, accountID, userID
 	return nil, status.Errorf(codes.Unimplemented, "method CreateUser is not implemented")
 }
 
+func (am *MockAccountManager) CreateUserInvite(ctx context.Context, accountID, initiatorUserID string, invite *types.UserInfo, expiresIn int) (*types.UserInvite, error) {
+	if am.CreateUserInviteFunc != nil {
+		return am.CreateUserInviteFunc(ctx, accountID, initiatorUserID, invite, expiresIn)
+	}
+	return nil, status.Errorf(codes.Unimplemented, "method CreateUserInvite is not implemented")
+}
+
+func (am *MockAccountManager) AcceptUserInvite(ctx context.Context, token, password string) error {
+	if am.AcceptUserInviteFunc != nil {
+		return am.AcceptUserInviteFunc(ctx, token, password)
+	}
+	return status.Errorf(codes.Unimplemented, "method AcceptUserInvite is not implemented")
+}
+
+func (am *MockAccountManager) RegenerateUserInvite(ctx context.Context, accountID, initiatorUserID, inviteID string, expiresIn int) (*types.UserInvite, error) {
+	if am.RegenerateUserInviteFunc != nil {
+		return am.RegenerateUserInviteFunc(ctx, accountID, initiatorUserID, inviteID, expiresIn)
+	}
+	return nil, status.Errorf(codes.Unimplemented, "method RegenerateUserInvite is not implemented")
+}
+
+func (am *MockAccountManager) GetUserInviteInfo(ctx context.Context, token string) (*types.UserInviteInfo, error) {
+	if am.GetUserInviteInfoFunc != nil {
+		return am.GetUserInviteInfoFunc(ctx, token)
+	}
+	return nil, status.Errorf(codes.Unimplemented, "method GetUserInviteInfo is not implemented")
+}
+
+func (am *MockAccountManager) ListUserInvites(ctx context.Context, accountID, initiatorUserID string) ([]*types.UserInvite, error) {
+	if am.ListUserInvitesFunc != nil {
+		return am.ListUserInvitesFunc(ctx, accountID, initiatorUserID)
+	}
+	return nil, status.Errorf(codes.Unimplemented, "method ListUserInvites is not implemented")
+}
+
+func (am *MockAccountManager) DeleteUserInvite(ctx context.Context, accountID, initiatorUserID, inviteID string) error {
+	if am.DeleteUserInviteFunc != nil {
+		return am.DeleteUserInviteFunc(ctx, accountID, initiatorUserID, inviteID)
+	}
+	return status.Errorf(codes.Unimplemented, "method DeleteUserInvite is not implemented")
+}
+
 func (am *MockAccountManager) GetAccountIDFromUserAuth(ctx context.Context, userAuth auth.UserAuth) (string, string, error) {
 	if am.GetAccountIDFromUserAuthFunc != nil {
 		return am.GetAccountIDFromUserAuthFunc(ctx, userAuth)

management/server/nameserver.go

@@ -3,10 +3,10 @@ package server
 import (
 	"context"
 	"errors"
-	"regexp"
+	"fmt"
+	"strings"
 	"unicode/utf8"
 
-	"github.com/miekg/dns"
 	"github.com/rs/xid"
 
 	nbdns "github.com/netbirdio/netbird/dns"
@@ -15,11 +15,10 @@ import (
 	"github.com/netbirdio/netbird/management/server/permissions/operations"
 	"github.com/netbirdio/netbird/management/server/store"
 	"github.com/netbirdio/netbird/management/server/types"
+	nbdomain "github.com/netbirdio/netbird/shared/management/domain"
 	"github.com/netbirdio/netbird/shared/management/status"
 )
 
-const domainPattern = `^(?i)[a-z0-9]+([\-\.]{1}[a-z0-9]+)*[*.a-z]{1,}$`
-
 var errInvalidDomainName = errors.New("invalid domain name")
 
 // GetNameServerGroup gets a nameserver group object from account and nameserver group IDs
@@ -305,16 +304,18 @@ func validateGroups(list []string, groups map[string]*types.Group) error {
 	return nil
 }
 
-var domainMatcher = regexp.MustCompile(domainPattern)
-
-func validateDomain(domain string) error {
-	if !domainMatcher.MatchString(domain) {
-		return errors.New("domain should consists of only letters, numbers, and hyphens with no leading, trailing hyphens, or spaces")
+// validateDomain validates a nameserver match domain.
+// Converts unicode to punycode. Wildcards are not allowed for nameservers.
+func validateDomain(d string) error {
+	if strings.HasPrefix(d, "*.") {
+		return errors.New("wildcards not allowed")
 	}
 
-	_, valid := dns.IsDomainName(domain)
-	if !valid {
-		return errInvalidDomainName
+	// Nameservers allow trailing dot (FQDN format)
+	toValidate := strings.TrimSuffix(d, ".")
+
+	if _, err := nbdomain.ValidateDomains([]string{toValidate}); err != nil {
+		return fmt.Errorf("%w: %w", errInvalidDomainName, err)
 	}
 
 	return nil

management/server/nameserver_test.go

@@ -901,82 +901,53 @@ func initTestNSAccount(t *testing.T, am *DefaultAccountManager) (*types.Account,
 	return account, nil
 }
 
+// TestValidateDomain tests nameserver-specific domain validation.
+// Core domain validation is tested in shared/management/domain/validate_test.go.
+// This test only covers nameserver-specific behavior: wildcard rejection and unicode support.
 func TestValidateDomain(t *testing.T) {
 	testCases := []struct {
 		name    string
 		domain  string
 		errFunc require.ErrorAssertionFunc
 	}{
+		// Nameserver-specific: wildcards not allowed
 		{
-			name:    "Valid domain name with multiple labels",
-			domain:  "123.example.com",
+			name:    "Wildcard prefix rejected",
+			domain:  "*.example.com",
+			errFunc: require.Error,
+		},
+		{
+			name:    "Wildcard in middle rejected",
+			domain:  "a.*.example.com",
+			errFunc: require.Error,
+		},
+		// Nameserver-specific: unicode converted to punycode
+		{
+			name:    "Unicode domain converted to punycode",
+			domain:  "münchen.de",
 			errFunc: require.NoError,
 		},
 		{
-			name:    "Valid domain name with hyphen",
-			domain:  "test-example.com",
+			name:    "Unicode domain all labels",
+			domain:  "中国.中国",
+			errFunc: require.NoError,
+		},
+		// Basic validation still works (delegates to shared validation)
+		{
+			name:    "Valid multi-label domain",
+			domain:  "example.com",
 			errFunc: require.NoError,
 		},
 		{
-			name:    "Valid domain name with only one label",
-			domain:  "example",
+			name:    "Valid single label",
+			domain:  "internal",
 			errFunc: require.NoError,
 		},
 		{
-			name:    "Valid domain name with trailing dot",
-			domain:  "example.",
-			errFunc: require.NoError,
-		},
-		{
-			name:    "Invalid wildcard domain name",
-			domain:  "*.example",
-			errFunc: require.Error,
-		},
-		{
-			name:    "Invalid domain name with leading dot",
-			domain:  ".com",
-			errFunc: require.Error,
-		},
-		{
-			name:    "Invalid domain name with dot only",
-			domain:  ".",
-			errFunc: require.Error,
-		},
-		{
-			name:    "Invalid domain name with double hyphen",
-			domain:  "test--example.com",
-			errFunc: require.Error,
-		},
-		{
-			name:    "Invalid domain name with a label exceeding 63 characters",
-			domain:  "dnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdnsdns.com",
-			errFunc: require.Error,
-		},
-		{
-			name:    "Invalid domain name starting with a hyphen",
+			name:    "Invalid leading hyphen",
 			domain:  "-example.com",
 			errFunc: require.Error,
 		},
-		{
-			name:    "Invalid domain name ending with a hyphen",
-			domain:  "example.com-",
-			errFunc: require.Error,
-		},
-		{
-			name:    "Invalid domain with unicode",
-			domain:  "example?,.com",
-			errFunc: require.Error,
-		},
-		{
-			name:    "Invalid domain with space before top-level domain",
-			domain:  "space .example.com",
-			errFunc: require.Error,
-		},
-		{
-			name:    "Invalid domain with trailing space",
-			domain:  "example.com ",
-			errFunc: require.Error,
-		},
 	}
 
 	for _, testCase := range testCases {

management/server/networks/resources/manager_test.go

@@ -203,7 +203,7 @@ func Test_CreateResourceFailsWithInvalidAddress(t *testing.T) {
 		NetworkID:   "testNetworkId",
 		Name:        "testResourceId",
 		Description: "description",
-		Address:     "invalid-address",
+		Address:     "-invalid",
 	}
 
 	store, cleanUp, err := store.NewTestStoreFromSQL(context.Background(), "../../testdata/networks.sql", t.TempDir())
@@ -227,9 +227,9 @@ func Test_CreateResourceFailsWithUsedName(t *testing.T) {
 	resource := &types.NetworkResource{
 		AccountID:   "testAccountId",
 		NetworkID:   "testNetworkId",
-		Name:        "testResourceId",
+		Name:        "used-name",
 		Description: "description",
-		Address:     "invalid-address",
+		Address:     "example.com",
 	}
 
 	store, cleanUp, err := store.NewTestStoreFromSQL(context.Background(), "../../testdata/networks.sql", t.TempDir())

management/server/networks/resources/types/resource.go

@@ -4,7 +4,6 @@ import (
 	"errors"
 	"fmt"
 	"net/netip"
-	"regexp"
 
 	"github.com/rs/xid"
 
@@ -166,8 +165,7 @@ func GetResourceType(address string) (NetworkResourceType, string, netip.Prefix,
 		return Host, "", netip.PrefixFrom(ip, ip.BitLen()), nil
 	}
 
-	domainRegex := regexp.MustCompile(`^(\*\.)?([a-zA-Z0-9-]+\.)+[a-zA-Z]{2,}$`)
-	if domainRegex.MatchString(address) {
+	if _, err := nbDomain.ValidateDomains([]string{address}); err == nil {
 		return Domain, address, netip.Prefix{}, nil
 	}
 

management/server/networks/resources/types/resource_test.go

@@ -23,10 +23,12 @@ func TestGetResourceType(t *testing.T) {
 		{"example.com", Domain, false, "example.com", netip.Prefix{}},
 		{"*.example.com", Domain, false, "*.example.com", netip.Prefix{}},
 		{"sub.example.com", Domain, false, "sub.example.com", netip.Prefix{}},
+		{"example.x", Domain, false, "example.x", netip.Prefix{}},
+		{"internal", Domain, false, "internal", netip.Prefix{}},
 		// Invalid inputs
-		{"invalid", "", true, "", netip.Prefix{}},
 		{"1.1.1.1/abc", "", true, "", netip.Prefix{}},
-		{"1234", "", true, "", netip.Prefix{}},
+		{"-invalid.com", "", true, "", netip.Prefix{}},
+		{"", "", true, "", netip.Prefix{}},
 	}
 
 	for _, tt := range tests {

management/server/peer.go

@@ -728,11 +728,6 @@ func (am *DefaultAccountManager) AddPeer(ctx context.Context, accountID, setupKe
 				return fmt.Errorf("failed adding peer to All group: %w", err)
 			}
 
-			if temporary {
-				// we should track ephemeral peers to be able to clean them if the peer don't sync and be marked as connected
-				am.networkMapController.TrackEphemeralPeer(ctx, newPeer)
-			}
-
 			if addedByUser {
 				err := transaction.SaveUserLastLogin(ctx, accountID, userID, newPeer.GetLastLogin())
 				if err != nil {
@@ -760,6 +755,11 @@ func (am *DefaultAccountManager) AddPeer(ctx context.Context, accountID, setupKe
 				return fmt.Errorf("failed to increment network serial: %w", err)
 			}
 
+			if ephemeral {
+				// we should track ephemeral peers to be able to clean them if the peer doesn't sync and isn't marked as connected
+				am.networkMapController.TrackEphemeralPeer(ctx, newPeer)
+			}
+
 			log.WithContext(ctx).Debugf("Peer %s added to account %s", newPeer.ID, accountID)
 			return nil
 		})

management/server/store/sql_store.go

@@ -126,7 +126,7 @@ func NewSqlStore(ctx context.Context, db *gorm.DB, storeEngine types.Engine, met
 		&types.Account{}, &types.Policy{}, &types.PolicyRule{}, &route.Route{}, &nbdns.NameServerGroup{},
 		&installation{}, &types.ExtraSettings{}, &posture.Checks{}, &nbpeer.NetworkAddress{},
 		&networkTypes.Network{}, &routerTypes.NetworkRouter{}, &resourceTypes.NetworkResource{}, &types.AccountOnboarding{},
-		&types.Job{}, &zones.Zone{}, &records.Record{},
+		&types.Job{}, &zones.Zone{}, &records.Record{}, &types.UserInviteRecord{},
 	)
 	if err != nil {
 		return nil, fmt.Errorf("auto migratePreAuto: %w", err)
@@ -815,6 +815,130 @@ func (s *SqlStore) GetAccountOwner(ctx context.Context, lockStrength LockingStre
 	return &user, nil
 }
 
+// SaveUserInvite saves a user invite to the database
+func (s *SqlStore) SaveUserInvite(ctx context.Context, invite *types.UserInviteRecord) error {
+	inviteCopy := invite.Copy()
+	if err := inviteCopy.EncryptSensitiveData(s.fieldEncrypt); err != nil {
+		return fmt.Errorf("encrypt invite: %w", err)
+	}
+
+	result := s.db.Save(inviteCopy)
+	if result.Error != nil {
+		log.WithContext(ctx).Errorf("failed to save user invite to store: %s", result.Error)
+		return status.Errorf(status.Internal, "failed to save user invite to store")
+	}
+	return nil
+}
+
+// GetUserInviteByID retrieves a user invite by its ID and account ID
+func (s *SqlStore) GetUserInviteByID(ctx context.Context, lockStrength LockingStrength, accountID, inviteID string) (*types.UserInviteRecord, error) {
+	tx := s.db
+	if lockStrength != LockingStrengthNone {
+		tx = tx.Clauses(clause.Locking{Strength: string(lockStrength)})
+	}
+
+	var invite types.UserInviteRecord
+	result := tx.Where("account_id = ?", accountID).Take(&invite, idQueryCondition, inviteID)
+	if result.Error != nil {
+		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
+			return nil, status.Errorf(status.NotFound, "user invite not found")
+		}
+		log.WithContext(ctx).Errorf("failed to get user invite from store: %s", result.Error)
+		return nil, status.Errorf(status.Internal, "failed to get user invite from store")
+	}
+
+	if err := invite.DecryptSensitiveData(s.fieldEncrypt); err != nil {
+		return nil, fmt.Errorf("decrypt invite: %w", err)
+	}
+
+	return &invite, nil
+}
+
+// GetUserInviteByHashedToken retrieves a user invite by its hashed token
+func (s *SqlStore) GetUserInviteByHashedToken(ctx context.Context, lockStrength LockingStrength, hashedToken string) (*types.UserInviteRecord, error) {
+	tx := s.db
+	if lockStrength != LockingStrengthNone {
+		tx = tx.Clauses(clause.Locking{Strength: string(lockStrength)})
+	}
+
+	var invite types.UserInviteRecord
+	result := tx.Take(&invite, "hashed_token = ?", hashedToken)
+	if result.Error != nil {
+		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
+			return nil, status.Errorf(status.NotFound, "user invite not found")
+		}
+		log.WithContext(ctx).Errorf("failed to get user invite from store: %s", result.Error)
+		return nil, status.Errorf(status.Internal, "failed to get user invite from store")
+	}
+
+	if err := invite.DecryptSensitiveData(s.fieldEncrypt); err != nil {
+		return nil, fmt.Errorf("decrypt invite: %w", err)
+	}
+
+	return &invite, nil
+}
+
+// GetUserInviteByEmail retrieves a user invite by account ID and email.
+// Since email is encrypted with random IVs, we fetch all invites for the account
+// and compare emails in memory after decryption.
+func (s *SqlStore) GetUserInviteByEmail(ctx context.Context, lockStrength LockingStrength, accountID, email string) (*types.UserInviteRecord, error) {
+	tx := s.db
+	if lockStrength != LockingStrengthNone {
+		tx = tx.Clauses(clause.Locking{Strength: string(lockStrength)})
+	}
+
+	var invites []*types.UserInviteRecord
+	result := tx.Find(&invites, "account_id = ?", accountID)
+	if result.Error != nil {
+		log.WithContext(ctx).Errorf("failed to get user invites from store: %s", result.Error)
+		return nil, status.Errorf(status.Internal, "failed to get user invites from store")
+	}
+
+	for _, invite := range invites {
+		if err := invite.DecryptSensitiveData(s.fieldEncrypt); err != nil {
+			return nil, fmt.Errorf("decrypt invite: %w", err)
+		}
+		if strings.EqualFold(invite.Email, email) {
+			return invite, nil
+		}
+	}
+
+	return nil, status.Errorf(status.NotFound, "user invite not found for email")
+}
+
+// GetAccountUserInvites retrieves all user invites for an account
+func (s *SqlStore) GetAccountUserInvites(ctx context.Context, lockStrength LockingStrength, accountID string) ([]*types.UserInviteRecord, error) {
+	tx := s.db
+	if lockStrength != LockingStrengthNone {
+		tx = tx.Clauses(clause.Locking{Strength: string(lockStrength)})
+	}
+
+	var invites []*types.UserInviteRecord
+	result := tx.Find(&invites, "account_id = ?", accountID)
+	if result.Error != nil {
+		log.WithContext(ctx).Errorf("failed to get user invites from store: %s", result.Error)
+		return nil, status.Errorf(status.Internal, "failed to get user invites from store")
+	}
+
+	for _, invite := range invites {
+		if err := invite.DecryptSensitiveData(s.fieldEncrypt); err != nil {
+			return nil, fmt.Errorf("decrypt invite: %w", err)
+		}
+	}
+
+	return invites, nil
+}
+
+// DeleteUserInvite deletes a user invite by its ID
+func (s *SqlStore) DeleteUserInvite(ctx context.Context, inviteID string) error {
+	result := s.db.Delete(&types.UserInviteRecord{}, idQueryCondition, inviteID)
+	if result.Error != nil {
+		log.WithContext(ctx).Errorf("failed to delete user invite from store: %s", result.Error)
+		return status.Errorf(status.Internal, "failed to delete user invite from store")
+	}
+	return nil
+}
+
 func (s *SqlStore) GetAccountGroups(ctx context.Context, lockStrength LockingStrength, accountID string) ([]*types.Group, error) {
 	tx := s.db
 	if lockStrength != LockingStrengthNone {
@@ -4269,6 +4393,9 @@ func (s *SqlStore) GetUserIDByPeerKey(ctx context.Context, lockStrength LockingS
 		Take(&userID, GetKeyQueryCondition(s), peerKey)
 
 	if result.Error != nil {
+		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
+			return "", status.Errorf(status.NotFound, "peer not found: index lookup failed")
+		}
 		return "", status.Errorf(status.Internal, "failed to get user ID by peer key")
 	}
 

management/server/store/sql_store_user_invite_test.go

@@ -0,0 +1,520 @@
+package store
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/netbirdio/netbird/management/server/types"
+)
+
+func TestSqlStore_SaveUserInvite(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		invite := &types.UserInviteRecord{
+			ID:          "invite-1",
+			AccountID:   "account-1",
+			Email:       "test@example.com",
+			Name:        "Test User",
+			Role:        "user",
+			AutoGroups:  []string{"group-1", "group-2"},
+			HashedToken: "hashed-token-123",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		// Verify the invite was saved
+		retrieved, err := store.GetUserInviteByID(ctx, LockingStrengthNone, invite.AccountID, invite.ID)
+		require.NoError(t, err)
+		assert.Equal(t, invite.ID, retrieved.ID)
+		assert.Equal(t, invite.Email, retrieved.Email)
+		assert.Equal(t, invite.Name, retrieved.Name)
+		assert.Equal(t, invite.Role, retrieved.Role)
+		assert.Equal(t, invite.AutoGroups, retrieved.AutoGroups)
+		assert.Equal(t, invite.CreatedBy, retrieved.CreatedBy)
+	})
+}
+
+func TestSqlStore_SaveUserInvite_Update(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		invite := &types.UserInviteRecord{
+			ID:          "invite-update",
+			AccountID:   "account-1",
+			Email:       "test@example.com",
+			Name:        "Test User",
+			Role:        "user",
+			AutoGroups:  []string{"group-1"},
+			HashedToken: "hashed-token-123",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		// Update the invite with a new token
+		invite.HashedToken = "new-hashed-token"
+		invite.ExpiresAt = time.Now().Add(24 * time.Hour)
+
+		err = store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		// Verify the update
+		retrieved, err := store.GetUserInviteByID(ctx, LockingStrengthNone, invite.AccountID, invite.ID)
+		require.NoError(t, err)
+		assert.Equal(t, "new-hashed-token", retrieved.HashedToken)
+	})
+}
+
+func TestSqlStore_GetUserInviteByID(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		invite := &types.UserInviteRecord{
+			ID:          "invite-get-by-id",
+			AccountID:   "account-1",
+			Email:       "getbyid@example.com",
+			Name:        "Get By ID User",
+			Role:        "admin",
+			AutoGroups:  []string{},
+			HashedToken: "hashed-token-get",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		// Get by ID - success
+		retrieved, err := store.GetUserInviteByID(ctx, LockingStrengthNone, invite.AccountID, invite.ID)
+		require.NoError(t, err)
+		assert.Equal(t, invite.ID, retrieved.ID)
+		assert.Equal(t, invite.Email, retrieved.Email)
+
+		// Get by ID - wrong account
+		_, err = store.GetUserInviteByID(ctx, LockingStrengthNone, "wrong-account", invite.ID)
+		assert.Error(t, err)
+
+		// Get by ID - not found
+		_, err = store.GetUserInviteByID(ctx, LockingStrengthNone, invite.AccountID, "non-existent")
+		assert.Error(t, err)
+	})
+}
+
+func TestSqlStore_GetUserInviteByHashedToken(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		invite := &types.UserInviteRecord{
+			ID:          "invite-get-by-token",
+			AccountID:   "account-1",
+			Email:       "getbytoken@example.com",
+			Name:        "Get By Token User",
+			Role:        "user",
+			AutoGroups:  []string{"group-1"},
+			HashedToken: "unique-hashed-token-456",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		// Get by hashed token - success
+		retrieved, err := store.GetUserInviteByHashedToken(ctx, LockingStrengthNone, invite.HashedToken)
+		require.NoError(t, err)
+		assert.Equal(t, invite.ID, retrieved.ID)
+		assert.Equal(t, invite.Email, retrieved.Email)
+
+		// Get by hashed token - not found
+		_, err = store.GetUserInviteByHashedToken(ctx, LockingStrengthNone, "non-existent-token")
+		assert.Error(t, err)
+	})
+}
+
+func TestSqlStore_GetUserInviteByEmail(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		invite := &types.UserInviteRecord{
+			ID:          "invite-get-by-email",
+			AccountID:   "account-email-test",
+			Email:       "unique-email@example.com",
+			Name:        "Get By Email User",
+			Role:        "user",
+			AutoGroups:  []string{},
+			HashedToken: "hashed-token-email",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		// Get by email - success
+		retrieved, err := store.GetUserInviteByEmail(ctx, LockingStrengthNone, invite.AccountID, invite.Email)
+		require.NoError(t, err)
+		assert.Equal(t, invite.ID, retrieved.ID)
+
+		// Get by email - case insensitive
+		retrieved, err = store.GetUserInviteByEmail(ctx, LockingStrengthNone, invite.AccountID, "UNIQUE-EMAIL@EXAMPLE.COM")
+		require.NoError(t, err)
+		assert.Equal(t, invite.ID, retrieved.ID)
+
+		// Get by email - wrong account
+		_, err = store.GetUserInviteByEmail(ctx, LockingStrengthNone, "wrong-account", invite.Email)
+		assert.Error(t, err)
+
+		// Get by email - not found
+		_, err = store.GetUserInviteByEmail(ctx, LockingStrengthNone, invite.AccountID, "nonexistent@example.com")
+		assert.Error(t, err)
+	})
+}
+
+func TestSqlStore_GetAccountUserInvites(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		accountID := "account-list-invites"
+
+		invites := []*types.UserInviteRecord{
+			{
+				ID:          "invite-list-1",
+				AccountID:   accountID,
+				Email:       "user1@example.com",
+				Name:        "User One",
+				Role:        "user",
+				AutoGroups:  []string{"group-1"},
+				HashedToken: "hashed-token-list-1",
+				ExpiresAt:   time.Now().Add(72 * time.Hour),
+				CreatedAt:   time.Now(),
+				CreatedBy:   "admin-user",
+			},
+			{
+				ID:          "invite-list-2",
+				AccountID:   accountID,
+				Email:       "user2@example.com",
+				Name:        "User Two",
+				Role:        "admin",
+				AutoGroups:  []string{"group-2"},
+				HashedToken: "hashed-token-list-2",
+				ExpiresAt:   time.Now().Add(24 * time.Hour),
+				CreatedAt:   time.Now(),
+				CreatedBy:   "admin-user",
+			},
+			{
+				ID:          "invite-list-3",
+				AccountID:   "different-account",
+				Email:       "user3@example.com",
+				Name:        "User Three",
+				Role:        "user",
+				AutoGroups:  []string{},
+				HashedToken: "hashed-token-list-3",
+				ExpiresAt:   time.Now().Add(72 * time.Hour),
+				CreatedAt:   time.Now(),
+				CreatedBy:   "admin-user",
+			},
+		}
+
+		for _, invite := range invites {
+			err := store.SaveUserInvite(ctx, invite)
+			require.NoError(t, err)
+		}
+
+		// Get all invites for the account
+		retrieved, err := store.GetAccountUserInvites(ctx, LockingStrengthNone, accountID)
+		require.NoError(t, err)
+		assert.Len(t, retrieved, 2)
+
+		// Verify the invites belong to the correct account
+		for _, invite := range retrieved {
+			assert.Equal(t, accountID, invite.AccountID)
+		}
+
+		// Get invites for account with no invites
+		retrieved, err = store.GetAccountUserInvites(ctx, LockingStrengthNone, "empty-account")
+		require.NoError(t, err)
+		assert.Len(t, retrieved, 0)
+	})
+}
+
+func TestSqlStore_DeleteUserInvite(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		invite := &types.UserInviteRecord{
+			ID:          "invite-delete",
+			AccountID:   "account-delete-test",
+			Email:       "delete@example.com",
+			Name:        "Delete User",
+			Role:        "user",
+			AutoGroups:  []string{},
+			HashedToken: "hashed-token-delete",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		// Verify invite exists
+		_, err = store.GetUserInviteByID(ctx, LockingStrengthNone, invite.AccountID, invite.ID)
+		require.NoError(t, err)
+
+		// Delete the invite
+		err = store.DeleteUserInvite(ctx, invite.ID)
+		require.NoError(t, err)
+
+		// Verify invite is deleted
+		_, err = store.GetUserInviteByID(ctx, LockingStrengthNone, invite.AccountID, invite.ID)
+		assert.Error(t, err)
+	})
+}
+
+func TestSqlStore_UserInvite_EncryptedFields(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		invite := &types.UserInviteRecord{
+			ID:          "invite-encrypted",
+			AccountID:   "account-encrypted",
+			Email:       "sensitive-email@example.com",
+			Name:        "Sensitive Name",
+			Role:        "user",
+			AutoGroups:  []string{"group-1"},
+			HashedToken: "hashed-token-encrypted",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		// Retrieve and verify decryption works
+		retrieved, err := store.GetUserInviteByID(ctx, LockingStrengthNone, invite.AccountID, invite.ID)
+		require.NoError(t, err)
+		assert.Equal(t, "sensitive-email@example.com", retrieved.Email)
+		assert.Equal(t, "Sensitive Name", retrieved.Name)
+	})
+}
+
+func TestSqlStore_DeleteUserInvite_NonExistent(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		// Deleting a non-existent invite should not return an error
+		err := store.DeleteUserInvite(ctx, "non-existent-invite-id")
+		require.NoError(t, err)
+	})
+}
+
+func TestSqlStore_UserInvite_SameEmailDifferentAccounts(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		email := "shared-email@example.com"
+
+		// Create invite in first account
+		invite1 := &types.UserInviteRecord{
+			ID:          "invite-account1",
+			AccountID:   "account-1",
+			Email:       email,
+			Name:        "User Account 1",
+			Role:        "user",
+			AutoGroups:  []string{},
+			HashedToken: "hashed-token-account1",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-1",
+		}
+
+		// Create invite in second account with same email
+		invite2 := &types.UserInviteRecord{
+			ID:          "invite-account2",
+			AccountID:   "account-2",
+			Email:       email,
+			Name:        "User Account 2",
+			Role:        "admin",
+			AutoGroups:  []string{"group-1"},
+			HashedToken: "hashed-token-account2",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-2",
+		}
+
+		err := store.SaveUserInvite(ctx, invite1)
+		require.NoError(t, err)
+
+		err = store.SaveUserInvite(ctx, invite2)
+		require.NoError(t, err)
+
+		// Verify each account gets the correct invite by email
+		retrieved1, err := store.GetUserInviteByEmail(ctx, LockingStrengthNone, "account-1", email)
+		require.NoError(t, err)
+		assert.Equal(t, "invite-account1", retrieved1.ID)
+		assert.Equal(t, "User Account 1", retrieved1.Name)
+
+		retrieved2, err := store.GetUserInviteByEmail(ctx, LockingStrengthNone, "account-2", email)
+		require.NoError(t, err)
+		assert.Equal(t, "invite-account2", retrieved2.ID)
+		assert.Equal(t, "User Account 2", retrieved2.Name)
+	})
+}
+
+func TestSqlStore_UserInvite_LockingStrength(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		invite := &types.UserInviteRecord{
+			ID:          "invite-locking",
+			AccountID:   "account-locking",
+			Email:       "locking@example.com",
+			Name:        "Locking Test User",
+			Role:        "user",
+			AutoGroups:  []string{},
+			HashedToken: "hashed-token-locking",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		// Test with different locking strengths
+		lockStrengths := []LockingStrength{LockingStrengthNone, LockingStrengthShare, LockingStrengthUpdate}
+
+		for _, strength := range lockStrengths {
+			retrieved, err := store.GetUserInviteByID(ctx, strength, invite.AccountID, invite.ID)
+			require.NoError(t, err)
+			assert.Equal(t, invite.ID, retrieved.ID)
+
+			retrieved, err = store.GetUserInviteByHashedToken(ctx, strength, invite.HashedToken)
+			require.NoError(t, err)
+			assert.Equal(t, invite.ID, retrieved.ID)
+
+			retrieved, err = store.GetUserInviteByEmail(ctx, strength, invite.AccountID, invite.Email)
+			require.NoError(t, err)
+			assert.Equal(t, invite.ID, retrieved.ID)
+
+			invites, err := store.GetAccountUserInvites(ctx, strength, invite.AccountID)
+			require.NoError(t, err)
+			assert.Len(t, invites, 1)
+		}
+	})
+}
+
+func TestSqlStore_UserInvite_EmptyAutoGroups(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		// Test with nil AutoGroups
+		invite := &types.UserInviteRecord{
+			ID:          "invite-nil-autogroups",
+			AccountID:   "account-autogroups",
+			Email:       "nilgroups@example.com",
+			Name:        "Nil Groups User",
+			Role:        "user",
+			AutoGroups:  nil,
+			HashedToken: "hashed-token-nil",
+			ExpiresAt:   time.Now().Add(72 * time.Hour),
+			CreatedAt:   time.Now(),
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		retrieved, err := store.GetUserInviteByID(ctx, LockingStrengthNone, invite.AccountID, invite.ID)
+		require.NoError(t, err)
+		// Should return empty slice or nil, both are acceptable
+		assert.Empty(t, retrieved.AutoGroups)
+	})
+}
+
+func TestSqlStore_UserInvite_TimestampPrecision(t *testing.T) {
+	runTestForAllEngines(t, "", func(t *testing.T, store Store) {
+		if store == nil {
+			t.Skip("store is nil")
+		}
+		ctx := context.Background()
+
+		now := time.Now().UTC().Truncate(time.Millisecond)
+		expiresAt := now.Add(72 * time.Hour)
+
+		invite := &types.UserInviteRecord{
+			ID:          "invite-timestamp",
+			AccountID:   "account-timestamp",
+			Email:       "timestamp@example.com",
+			Name:        "Timestamp User",
+			Role:        "user",
+			AutoGroups:  []string{},
+			HashedToken: "hashed-token-timestamp",
+			ExpiresAt:   expiresAt,
+			CreatedAt:   now,
+			CreatedBy:   "admin-user",
+		}
+
+		err := store.SaveUserInvite(ctx, invite)
+		require.NoError(t, err)
+
+		retrieved, err := store.GetUserInviteByID(ctx, LockingStrengthNone, invite.AccountID, invite.ID)
+		require.NoError(t, err)
+
+		// Verify timestamps are preserved (within reasonable precision)
+		assert.WithinDuration(t, now, retrieved.CreatedAt, time.Second)
+		assert.WithinDuration(t, expiresAt, retrieved.ExpiresAt, time.Second)
+	})
+}

management/server/store/store.go

@@ -92,6 +92,13 @@ type Store interface {
 	DeleteHashedPAT2TokenIDIndex(hashedToken string) error
 	DeleteTokenID2UserIDIndex(tokenID string) error
 
+	SaveUserInvite(ctx context.Context, invite *types.UserInviteRecord) error
+	GetUserInviteByID(ctx context.Context, lockStrength LockingStrength, accountID, inviteID string) (*types.UserInviteRecord, error)
+	GetUserInviteByHashedToken(ctx context.Context, lockStrength LockingStrength, hashedToken string) (*types.UserInviteRecord, error)
+	GetUserInviteByEmail(ctx context.Context, lockStrength LockingStrength, accountID, email string) (*types.UserInviteRecord, error)
+	GetAccountUserInvites(ctx context.Context, lockStrength LockingStrength, accountID string) ([]*types.UserInviteRecord, error)
+	DeleteUserInvite(ctx context.Context, inviteID string) error
+
 	GetPATByID(ctx context.Context, lockStrength LockingStrength, userID, patID string) (*types.PersonalAccessToken, error)
 	GetUserPATs(ctx context.Context, lockStrength LockingStrength, userID string) ([]*types.PersonalAccessToken, error)
 	GetPATByHashedToken(ctx context.Context, lockStrength LockingStrength, hashedToken string) (*types.PersonalAccessToken, error)

management/server/types/user_invite.go

@@ -0,0 +1,201 @@
+package types
+
+import (
+	"crypto/sha256"
+	b64 "encoding/base64"
+	"fmt"
+	"hash/crc32"
+	"strings"
+	"time"
+
+	b "github.com/hashicorp/go-secure-stdlib/base62"
+	"github.com/rs/xid"
+
+	"github.com/netbirdio/netbird/base62"
+	"github.com/netbirdio/netbird/util/crypt"
+)
+
+const (
+	// InviteTokenPrefix is the prefix for invite tokens
+	InviteTokenPrefix = "nbi_"
+	// InviteTokenSecretLength is the length of the random secret part
+	InviteTokenSecretLength = 30
+	// InviteTokenChecksumLength is the length of the encoded checksum
+	InviteTokenChecksumLength = 6
+	// InviteTokenLength is the total length of the token (4 + 30 + 6 = 40)
+	InviteTokenLength = 40
+	// DefaultInviteExpirationSeconds is the default expiration time for invites (72 hours)
+	DefaultInviteExpirationSeconds = 259200
+	// MinInviteExpirationSeconds is the minimum expiration time for invites (1 hour)
+	MinInviteExpirationSeconds = 3600
+)
+
+// UserInviteRecord represents an invitation for a user to set up their account (database model)
+type UserInviteRecord struct {
+	ID          string    `gorm:"primaryKey"`
+	AccountID   string    `gorm:"index;not null"`
+	Email       string    `gorm:"index;not null"`
+	Name        string    `gorm:"not null"`
+	Role        string    `gorm:"not null"`
+	AutoGroups  []string  `gorm:"serializer:json"`
+	HashedToken string    `gorm:"index;not null"` // SHA-256 hash of the token (base64 encoded)
+	ExpiresAt   time.Time `gorm:"not null"`
+	CreatedAt   time.Time `gorm:"not null"`
+	CreatedBy   string    `gorm:"not null"`
+}
+
+// TableName returns the table name for GORM
+func (UserInviteRecord) TableName() string {
+	return "user_invites"
+}
+
+// GenerateInviteToken creates a new invite token with the format: nbi_<secret><checksum>
+// Returns the hashed token (for storage) and the plain token (to give to the user)
+func GenerateInviteToken() (hashedToken string, plainToken string, err error) {
+	secret, err := b.Random(InviteTokenSecretLength)
+	if err != nil {
+		return "", "", fmt.Errorf("failed to generate random secret: %w", err)
+	}
+
+	checksum := crc32.ChecksumIEEE([]byte(secret))
+	encodedChecksum := base62.Encode(checksum)
+	// Left-pad with '0' to ensure exactly 6 characters (fmt.Sprintf %s pads with spaces which breaks base62.Decode)
+	paddedChecksum := encodedChecksum
+	if len(paddedChecksum) < InviteTokenChecksumLength {
+		paddedChecksum = strings.Repeat("0", InviteTokenChecksumLength-len(paddedChecksum)) + paddedChecksum
+	}
+
+	plainToken = InviteTokenPrefix + secret + paddedChecksum
+	hash := sha256.Sum256([]byte(plainToken))
+	hashedToken = b64.StdEncoding.EncodeToString(hash[:])
+
+	return hashedToken, plainToken, nil
+}
+
+// HashInviteToken creates a SHA-256 hash of the token (base64 encoded)
+func HashInviteToken(token string) string {
+	hash := sha256.Sum256([]byte(token))
+	return b64.StdEncoding.EncodeToString(hash[:])
+}
+
+// ValidateInviteToken validates the token format and checksum.
+// Returns an error if the token is invalid.
+func ValidateInviteToken(token string) error {
+	if len(token) != InviteTokenLength {
+		return fmt.Errorf("invalid token length")
+	}
+
+	prefix := token[:len(InviteTokenPrefix)]
+	if prefix != InviteTokenPrefix {
+		return fmt.Errorf("invalid token prefix")
+	}
+
+	secret := token[len(InviteTokenPrefix) : len(InviteTokenPrefix)+InviteTokenSecretLength]
+	encodedChecksum := token[len(InviteTokenPrefix)+InviteTokenSecretLength:]
+
+	verificationChecksum, err := base62.Decode(encodedChecksum)
+	if err != nil {
+		return fmt.Errorf("checksum decoding failed: %w", err)
+	}
+
+	secretChecksum := crc32.ChecksumIEEE([]byte(secret))
+	if secretChecksum != verificationChecksum {
+		return fmt.Errorf("checksum does not match")
+	}
+
+	return nil
+}
+
+// IsExpired checks if the invite has expired
+func (i *UserInviteRecord) IsExpired() bool {
+	return time.Now().After(i.ExpiresAt)
+}
+
+// UserInvite contains the result of creating or regenerating an invite
+type UserInvite struct {
+	UserInfo        *UserInfo
+	InviteToken     string
+	InviteExpiresAt time.Time
+	InviteCreatedAt time.Time
+}
+
+// UserInviteInfo contains public information about an invite (for unauthenticated endpoint)
+type UserInviteInfo struct {
+	Email     string    `json:"email"`
+	Name      string    `json:"name"`
+	ExpiresAt time.Time `json:"expires_at"`
+	Valid     bool      `json:"valid"`
+	InvitedBy string    `json:"invited_by"`
+}
+
+// NewInviteID generates a new invite ID using xid
+func NewInviteID() string {
+	return xid.New().String()
+}
+
+// EncryptSensitiveData encrypts the invite's sensitive fields (Email and Name) in place.
+func (i *UserInviteRecord) EncryptSensitiveData(enc *crypt.FieldEncrypt) error {
+	if enc == nil {
+		return nil
+	}
+
+	var err error
+	if i.Email != "" {
+		i.Email, err = enc.Encrypt(i.Email)
+		if err != nil {
+			return fmt.Errorf("encrypt email: %w", err)
+		}
+	}
+
+	if i.Name != "" {
+		i.Name, err = enc.Encrypt(i.Name)
+		if err != nil {
+			return fmt.Errorf("encrypt name: %w", err)
+		}
+	}
+
+	return nil
+}
+
+// DecryptSensitiveData decrypts the invite's sensitive fields (Email and Name) in place.
+func (i *UserInviteRecord) DecryptSensitiveData(enc *crypt.FieldEncrypt) error {
+	if enc == nil {
+		return nil
+	}
+
+	var err error
+	if i.Email != "" {
+		i.Email, err = enc.Decrypt(i.Email)
+		if err != nil {
+			return fmt.Errorf("decrypt email: %w", err)
+		}
+	}
+
+	if i.Name != "" {
+		i.Name, err = enc.Decrypt(i.Name)
+		if err != nil {
+			return fmt.Errorf("decrypt name: %w", err)
+		}
+	}
+
+	return nil
+}
+
+// Copy creates a deep copy of the UserInviteRecord
+func (i *UserInviteRecord) Copy() *UserInviteRecord {
+	autoGroups := make([]string, len(i.AutoGroups))
+	copy(autoGroups, i.AutoGroups)
+
+	return &UserInviteRecord{
+		ID:          i.ID,
+		AccountID:   i.AccountID,
+		Email:       i.Email,
+		Name:        i.Name,
+		Role:        i.Role,
+		AutoGroups:  autoGroups,
+		HashedToken: i.HashedToken,
+		ExpiresAt:   i.ExpiresAt,
+		CreatedAt:   i.CreatedAt,
+		CreatedBy:   i.CreatedBy,
+	}
+}