Merge branch 'main' into force-routing-peer-dns-reverse-proxy

client/iface/iface_test.go

@@ -464,8 +464,6 @@ func Test_RemovePeer(t *testing.T) {
 }
 
 func Test_ConnectPeers(t *testing.T) {
-	t.Setenv("NB_DISABLE_EBPF_WG_PROXY", "true")
-
 	peer1ifaceName := fmt.Sprintf("utun%d", WgIntNumber+400)
 	peer1wgIP := netip.MustParsePrefix("10.99.99.17/30")
 	peer1Key, _ := wgtypes.GeneratePrivateKey()
@@ -507,8 +505,12 @@ func Test_ConnectPeers(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	localIP1 := "127.0.0.1"
-	peer1endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", localIP1, peer1wgPort))
+	localIP, err := getLocalIP()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	peer1endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", localIP, peer1wgPort))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -544,8 +546,7 @@ func Test_ConnectPeers(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	localIP2 := "127.0.0.1"
-	peer2endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", localIP2, peer2wgPort))
+	peer2endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", localIP, peer2wgPort))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -620,3 +621,28 @@ func getPeer(ifaceName, peerPubKey string) (wgtypes.Peer, error) {
 	}
 	return wgtypes.Peer{}, fmt.Errorf("peer not found")
 }
+
+func getLocalIP() (string, error) {
+	// Get all interfaces
+	addrs, err := net.InterfaceAddrs()
+	if err != nil {
+		return "", err
+	}
+
+	for _, addr := range addrs {
+		ipNet, ok := addr.(*net.IPNet)
+		if !ok {
+			continue
+		}
+		if ipNet.IP.IsLoopback() {
+			continue
+		}
+
+		if ipNet.IP.To4() == nil {
+			continue
+		}
+		return ipNet.IP.String(), nil
+	}
+
+	return "", fmt.Errorf("no local IP found")
+}

management/internals/shared/grpc/components_envelope_response.go

@@ -50,7 +50,7 @@ func ToComponentSyncResponse(
 	// TODO (dmitri) consider using invariants?
 	//
 	enableSSH := computeSSHEnabledForPeer(components, peer)
-	peerConfig := toPeerConfig(peer, components.Network, dnsName, settings, httpConfig, deviceFlowConfig, enableSSH)
+	peerConfig := toPeerConfig(peer, components.Network, dnsName, settings, httpConfig, deviceFlowConfig, enableSSH, components.ForceRoutingPeerDNSResolution)
 
 	includeIPv6 := peer.SupportsIPv6() && peer.IPv6.IsValid()
 	useSourcePrefixes := peer.SupportsSourcePrefixes()

management/internals/shared/grpc/conversion.go

@@ -119,7 +119,7 @@ func toNetbirdConfig(config *nbconfig.Config, turnCredentials *Token, relayToken
 	return nbConfig
 }
 
-func toPeerConfig(peer *nbpeer.Peer, network *types.Network, dnsName string, settings *types.Settings, httpConfig *nbconfig.HttpServerConfig, deviceFlowConfig *nbconfig.DeviceAuthorizationFlow, enableSSH bool) *proto.PeerConfig {
+func toPeerConfig(peer *nbpeer.Peer, network *types.Network, dnsName string, settings *types.Settings, httpConfig *nbconfig.HttpServerConfig, deviceFlowConfig *nbconfig.DeviceAuthorizationFlow, enableSSH bool, forceRoutingPeerDNS bool) *proto.PeerConfig {
 	netmask, _ := network.Net.Mask.Size()
 	fqdn := peer.FQDN(dnsName)
 
@@ -135,7 +135,7 @@ func toPeerConfig(peer *nbpeer.Peer, network *types.Network, dnsName string, set
 		Address:                         fmt.Sprintf("%s/%d", peer.IP.String(), netmask),
 		SshConfig:                       sshConfig,
 		Fqdn:                            fqdn,
-		RoutingPeerDnsResolutionEnabled: settings.RoutingPeerDNSResolutionEnabled,
+		RoutingPeerDnsResolutionEnabled: settings.RoutingPeerDNSResolutionEnabled || peer.ProxyMeta.Embedded || forceRoutingPeerDNS,
 		LazyConnectionEnabled:           settings.LazyConnectionEnabled,
 		AutoUpdate: &proto.AutoUpdateSettings{
 			Version:      settings.AutoUpdateVersion,
@@ -162,12 +162,12 @@ func ToSyncResponse(ctx context.Context, config *nbconfig.Config, httpConfig *nb
 	useSourcePrefixes := peer.SupportsSourcePrefixes()
 
 	response := &proto.SyncResponse{
-		PeerConfig: toPeerConfig(peer, networkMap.Network, dnsName, settings, httpConfig, deviceFlowConfig, networkMap.EnableSSH),
+		PeerConfig: toPeerConfig(peer, networkMap.Network, dnsName, settings, httpConfig, deviceFlowConfig, networkMap.EnableSSH, networkMap.ForceRoutingPeerDNSResolution),
 		NetworkMap: &proto.NetworkMap{
 			Serial:     networkMap.Network.CurrentSerial(),
 			Routes:     networkmap.ToProtocolRoutes(networkMap.Routes),
 			DNSConfig:  networkmap.ToProtocolDNSConfig(networkMap.DNSConfig, dnsCache, dnsFwdPort),
-			PeerConfig: toPeerConfig(peer, networkMap.Network, dnsName, settings, httpConfig, deviceFlowConfig, networkMap.EnableSSH),
+			PeerConfig: toPeerConfig(peer, networkMap.Network, dnsName, settings, httpConfig, deviceFlowConfig, networkMap.EnableSSH, networkMap.ForceRoutingPeerDNSResolution),
 		},
 		Checks: toProtocolChecks(ctx, checks),
 	}

management/internals/shared/grpc/conversion_test.go

@@ -2,6 +2,7 @@ package grpc
 
 import (
 	"fmt"
+	"net"
 	"net/netip"
 	"reflect"
 	"testing"
@@ -14,6 +15,7 @@ import (
 	"github.com/netbirdio/netbird/management/internals/controllers/network_map"
 	"github.com/netbirdio/netbird/management/internals/controllers/network_map/controller/cache"
 	nbconfig "github.com/netbirdio/netbird/management/internals/server/config"
+	nbpeer "github.com/netbirdio/netbird/management/server/peer"
 	"github.com/netbirdio/netbird/management/server/types"
 	"github.com/netbirdio/netbird/shared/management/networkmap"
 )
@@ -301,3 +303,35 @@ func TestToNetbirdConfig_RelayInvariant(t *testing.T) {
 		assert.True(t, nbCfg.Metrics.Enabled, "metrics flag should carry the settings value")
 	})
 }
+
+func TestToPeerConfig_RoutingPeerDNSResolution(t *testing.T) {
+	network := &types.Network{Net: net.IPNet{IP: net.IPv4(100, 0, 0, 0), Mask: net.CIDRMask(8, 32)}}
+
+	newPeer := func(embedded bool) *nbpeer.Peer {
+		p := &nbpeer.Peer{IP: netip.MustParseAddr("100.0.0.1")}
+		p.ProxyMeta.Embedded = embedded
+		return p
+	}
+
+	tests := []struct {
+		name        string
+		globalFlag  bool
+		embedded    bool
+		forceParam  bool
+		wantEnabled bool
+	}{
+		{name: "global off, regular peer, no force", wantEnabled: false},
+		{name: "global on wins", globalFlag: true, wantEnabled: true},
+		{name: "embedded proxy peer forced", embedded: true, wantEnabled: true},
+		{name: "routing peer forced via param", forceParam: true, wantEnabled: true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			settings := &types.Settings{RoutingPeerDNSResolutionEnabled: tt.globalFlag}
+			cfg := toPeerConfig(newPeer(tt.embedded), network, "netbird.selfhosted", settings, nil, nil, false, tt.forceParam)
+			assert.Equal(t, tt.wantEnabled, cfg.RoutingPeerDnsResolutionEnabled,
+				"RoutingPeerDnsResolutionEnabled should reflect global || embedded || forced")
+		})
+	}
+}

management/internals/shared/grpc/server.go

@@ -921,7 +921,7 @@ func (s *Server) prepareLoginResponse(ctx context.Context, peer *nbpeer.Peer, ne
 	// if peer has reached this point then it has logged in
 	loginResp := &proto.LoginResponse{
 		NetbirdConfig: toNetbirdConfig(s.config, nil, relayToken, nil, settings),
-		PeerConfig:    toPeerConfig(peer, network, s.networkMapController.GetDNSDomain(settings), settings, s.config.HttpConfig, s.config.DeviceAuthorizationFlow, enableSSH),
+		PeerConfig:    toPeerConfig(peer, network, s.networkMapController.GetDNSDomain(settings), settings, s.config.HttpConfig, s.config.DeviceAuthorizationFlow, enableSSH, false),
 		Checks:        toProtocolChecks(ctx, postureChecks),
 	}
 

management/server/types/account.go

@@ -1517,6 +1517,54 @@ func (a *Account) GetResourceRoutersMap() map[string]map[string]*routerTypes.Net
 	return routers
 }
 
+// forcesRoutingPeerDNSResolution reports whether the given peer must run
+// routing-peer DNS resolution regardless of the account-global
+// RoutingPeerDNSResolutionEnabled setting. It returns true when the peer is a
+// router for a domain network resource that is targeted by an enabled
+// reverse-proxy service, so the peer's DNS forwarder starts and can resolve
+// the target for the embedded proxy peers. Embedded proxy peers themselves are
+// handled at PeerConfig build time.
+func (a *Account) forcesRoutingPeerDNSResolution(peerID string, routers map[string]map[string]*routerTypes.NetworkRouter) bool {
+	targeted := a.proxyTargetedDomainResourceIDs()
+	if len(targeted) == 0 {
+		return false
+	}
+
+	for _, resource := range a.NetworkResources {
+		if resource == nil || !resource.Enabled || resource.Type != resourceTypes.Domain {
+			continue
+		}
+		if _, ok := targeted[resource.ID]; !ok {
+			continue
+		}
+		if _, isRouter := routers[resource.NetworkID][peerID]; isRouter {
+			return true
+		}
+	}
+
+	return false
+}
+
+// proxyTargetedDomainResourceIDs returns the set of domain network resource IDs
+// targeted by an enabled, non-terminated reverse-proxy service.
+func (a *Account) proxyTargetedDomainResourceIDs() map[string]struct{} {
+	ids := make(map[string]struct{})
+	for _, svc := range a.Services {
+		if svc == nil || !svc.Enabled || svc.Terminated {
+			continue
+		}
+		for _, target := range svc.Targets {
+			if target == nil || !target.Enabled {
+				continue
+			}
+			if target.TargetType == service.TargetTypeDomain {
+				ids[target.TargetId] = struct{}{}
+			}
+		}
+	}
+	return ids
+}
+
 // getPoliciesSourcePeers collects all unique peers from the source groups defined in the given policies.
 func getPoliciesSourcePeers(policies []*Policy, groups map[string]*Group) map[string]struct{} {
 	sourcePeers := make(map[string]struct{})

management/server/types/account_components.go

@@ -140,6 +140,8 @@ func (a *Account) GetPeerNetworkMapComponents(
 		RouterPeers:               make(map[string]*ComponentPeer),
 		NetworkXIDToPublicID:      make(map[string]string, len(a.Networks)),
 		PostureCheckXIDToPublicID: make(map[string]string, len(a.PostureChecks)),
+
+		ForceRoutingPeerDNSResolution: a.forcesRoutingPeerDNSResolution(peerID, routers),
 	}
 	for _, n := range a.Networks {
 		if n != nil {

management/server/types/account_test.go

@@ -1751,3 +1751,71 @@ func hasPrivateAccessPolicy(account *Account, serviceID string) bool {
 	}
 	return false
 }
+
+func TestForcesRoutingPeerDNSResolution(t *testing.T) {
+	buildAccountRes := func(serviceEnabled, targetEnabled, resourceEnabled bool, targetType service.TargetType, resType resourceTypes.NetworkResourceType) *Account {
+		return &Account{
+			Id: "accountID",
+			Groups: map[string]*Group{
+				"router-group": {ID: "router-group", Peers: []string{"router-peer-grp"}},
+			},
+			NetworkRouters: []*routerTypes.NetworkRouter{
+				{ID: "r1", NetworkID: "net-1", AccountID: "accountID", Peer: "router-peer", Enabled: true},
+				{ID: "r2", NetworkID: "net-1", AccountID: "accountID", PeerGroups: []string{"router-group"}, Enabled: true},
+			},
+			NetworkResources: []*resourceTypes.NetworkResource{
+				{ID: "res-domain", AccountID: "accountID", NetworkID: "net-1", Type: resType, Domain: "example.org", Enabled: resourceEnabled},
+			},
+			Services: []*service.Service{
+				{
+					ID: "svc-1", AccountID: "accountID", Enabled: serviceEnabled,
+					Targets: []*service.Target{
+						{TargetId: "res-domain", TargetType: targetType, Enabled: targetEnabled},
+					},
+				},
+			},
+		}
+	}
+
+	buildAccount := func(serviceEnabled, targetEnabled, resourceEnabled bool, targetType service.TargetType) *Account {
+		return buildAccountRes(serviceEnabled, targetEnabled, resourceEnabled, targetType, resourceTypes.Domain)
+	}
+
+	t.Run("router peer for RP-targeted domain resource is forced", func(t *testing.T) {
+		account := buildAccount(true, true, true, service.TargetTypeDomain)
+		routers := account.GetResourceRoutersMap()
+		assert.True(t, account.forcesRoutingPeerDNSResolution("router-peer", routers), "direct router peer should be forced")
+		assert.True(t, account.forcesRoutingPeerDNSResolution("router-peer-grp", routers), "group-member router peer should be forced")
+	})
+
+	t.Run("non-router peer is not forced", func(t *testing.T) {
+		account := buildAccount(true, true, true, service.TargetTypeDomain)
+		assert.False(t, account.forcesRoutingPeerDNSResolution("other-peer", account.GetResourceRoutersMap()))
+	})
+
+	t.Run("not forced when service disabled", func(t *testing.T) {
+		account := buildAccount(false, true, true, service.TargetTypeDomain)
+		assert.False(t, account.forcesRoutingPeerDNSResolution("router-peer", account.GetResourceRoutersMap()))
+	})
+
+	t.Run("not forced when target disabled", func(t *testing.T) {
+		account := buildAccount(true, false, true, service.TargetTypeDomain)
+		assert.False(t, account.forcesRoutingPeerDNSResolution("router-peer", account.GetResourceRoutersMap()))
+	})
+
+	t.Run("not forced when resource disabled", func(t *testing.T) {
+		account := buildAccount(true, true, false, service.TargetTypeDomain)
+		assert.False(t, account.forcesRoutingPeerDNSResolution("router-peer", account.GetResourceRoutersMap()))
+	})
+
+	t.Run("not forced for non-domain target type", func(t *testing.T) {
+		account := buildAccount(true, true, true, service.TargetTypePeer)
+		assert.False(t, account.forcesRoutingPeerDNSResolution("router-peer", account.GetResourceRoutersMap()))
+	})
+
+	t.Run("not forced when targeted resource is not a domain", func(t *testing.T) {
+		account := buildAccountRes(true, true, true, service.TargetTypeDomain, resourceTypes.Host)
+		assert.False(t, account.forcesRoutingPeerDNSResolution("router-peer", account.GetResourceRoutersMap()),
+			"a domain target pointing at a non-domain resource must not force resolution")
+	})
+}

release_files/freebsd-port-diff.sh

@@ -3,8 +3,8 @@
 # FreeBSD Port Diff Generator for NetBird
 #
 # This script generates the diff file required for submitting a FreeBSD port update.
-# It works on macOS, Linux, and FreeBSD by fetching files from the FreeBSD ports
-# GitHub mirror and computing checksums from the Go module proxy.
+# It works on macOS, Linux, and FreeBSD by fetching files from FreeBSD cgit and
+# computing checksums from the Go module proxy.
 #
 # Usage: ./freebsd-port-diff.sh [new_version]
 # Example: ./freebsd-port-diff.sh 0.60.7
@@ -14,7 +14,7 @@
 set -e
 
 GITHUB_REPO="netbirdio/netbird"
-PORTS_MIRROR_BASE="https://raw.githubusercontent.com/freebsd/freebsd-ports/main/security/netbird"
+PORTS_CGIT_BASE="https://cgit.freebsd.org/ports/plain/security/netbird"
 GO_PROXY="https://proxy.golang.org/github.com/netbirdio/netbird/@v"
 OUTPUT_DIR="${OUTPUT_DIR:-.}"
 AWK_FIRST_FIELD='{print $1}'
@@ -30,17 +30,10 @@ fetch_all_tags() {
 
 fetch_current_ports_version() {
     echo "Fetching current version from FreeBSD ports..." >&2
-    local makefile version
-    makefile=$(fetch_ports_file "Makefile") || return 1
-    version=$(echo "$makefile" | \
+    curl -sL "${PORTS_CGIT_BASE}/Makefile" 2>/dev/null | \
         grep -E "^DISTVERSION=" | \
         sed 's/DISTVERSION=[[:space:]]*//' | \
-        tr -d '\t ')
-    if [[ -z "$version" ]]; then
-        echo "Error: Could not extract DISTVERSION from ports Makefile" >&2
-        return 1
-    fi
-    echo "$version"
+        tr -d '\t '
     return 0
 }
 
@@ -52,16 +45,7 @@ fetch_latest_github_release() {
 
 fetch_ports_file() {
     local filename="$1"
-    local content
-    if ! content=$(curl -fsL --proto '=https' --proto-redir '=https' --retry 3 "${PORTS_MIRROR_BASE}/${filename}" 2>/dev/null); then
-        echo "Error: Could not fetch ${filename} from ${PORTS_MIRROR_BASE}" >&2
-        return 1
-    fi
-    if [[ "$content" == \<* ]]; then
-        echo "Error: Received HTML instead of ${filename} from ${PORTS_MIRROR_BASE}" >&2
-        return 1
-    fi
-    printf '%s' "$content"
+    curl -sL "${PORTS_CGIT_BASE}/${filename}" 2>/dev/null
     return 0
 }
 

release_files/freebsd-port-issue-body.sh

@@ -9,22 +9,18 @@
 # Example: ./freebsd-port-issue-body.sh 0.56.0 0.59.1
 #
 # If no versions are provided, the script will:
-#   - Fetch OLD version from the FreeBSD ports GitHub mirror (current version in ports tree)
+#   - Fetch OLD version from FreeBSD ports cgit (current version in ports tree)
 #   - Fetch NEW version from latest NetBird GitHub release tag
 
 set -e
 
 GITHUB_REPO="netbirdio/netbird"
-PORTS_MAKEFILE_URL="https://raw.githubusercontent.com/freebsd/freebsd-ports/main/security/netbird/Makefile"
+PORTS_CGIT_URL="https://cgit.freebsd.org/ports/plain/security/netbird/Makefile"
 
 fetch_current_ports_version() {
     echo "Fetching current version from FreeBSD ports..." >&2
     local makefile_content
-    makefile_content=$(curl -fsL --proto '=https' --proto-redir '=https' --retry 3 "$PORTS_MAKEFILE_URL" 2>/dev/null) || makefile_content=""
-    if [[ "$makefile_content" == \<* ]]; then
-        echo "Error: Received HTML instead of Makefile from ${PORTS_MAKEFILE_URL}" >&2
-        return 1
-    fi
+    makefile_content=$(curl -sL "$PORTS_CGIT_URL" 2>/dev/null)
     if [[ -z "$makefile_content" ]]; then
         echo "Error: Could not fetch Makefile from FreeBSD ports" >&2
         return 1

shared/management/client/grpc.go

@@ -187,16 +187,16 @@ func (c *GrpcClient) ready() bool {
 // Sync wraps the real client's Sync endpoint call and takes care of retries and encryption/decryption of messages
 // Blocking request. The result will be sent via msgHandler callback function
 func (c *GrpcClient) Sync(ctx context.Context, sysInfo *system.Info, msgHandler func(msg *proto.SyncResponse) error) error {
-	return c.withMgmtStream(ctx, func(ctx context.Context, serverPubKey wgtypes.Key, backOff backoff.BackOff) error {
-		return c.handleSyncStream(ctx, serverPubKey, sysInfo, msgHandler, backOff)
+	return c.withMgmtStream(ctx, func(ctx context.Context, serverPubKey wgtypes.Key) error {
+		return c.handleSyncStream(ctx, serverPubKey, sysInfo, msgHandler)
 	})
 }
 
 // Job wraps the real client's Job endpoint call and takes care of retries and encryption/decryption of messages
 // Blocking request. The result will be sent via msgHandler callback function
 func (c *GrpcClient) Job(ctx context.Context, msgHandler func(msg *proto.JobRequest) *proto.JobResponse) error {
-	return c.withMgmtStream(ctx, func(ctx context.Context, serverPubKey wgtypes.Key, backOff backoff.BackOff) error {
-		return c.handleJobStream(ctx, serverPubKey, msgHandler, backOff)
+	return c.withMgmtStream(ctx, func(ctx context.Context, serverPubKey wgtypes.Key) error {
+		return c.handleJobStream(ctx, serverPubKey, msgHandler)
 	})
 }
 
@@ -204,7 +204,7 @@ func (c *GrpcClient) Job(ctx context.Context, msgHandler func(msg *proto.JobRequ
 // It takes care of retries, connection readiness, and fetching server public key.
 func (c *GrpcClient) withMgmtStream(
 	ctx context.Context,
-	handler func(ctx context.Context, serverPubKey wgtypes.Key, backOff backoff.BackOff) error,
+	handler func(ctx context.Context, serverPubKey wgtypes.Key) error,
 ) error {
 	backOff := defaultBackoff(ctx)
 	operation := func() error {
@@ -224,7 +224,7 @@ func (c *GrpcClient) withMgmtStream(
 			return err
 		}
 
-		return handler(ctx, *serverPubKey, backOff)
+		return handler(ctx, *serverPubKey)
 	}
 
 	err := backoff.Retry(operation, backOff)
@@ -239,7 +239,6 @@ func (c *GrpcClient) handleJobStream(
 	ctx context.Context,
 	serverPubKey wgtypes.Key,
 	msgHandler func(msg *proto.JobRequest) *proto.JobResponse,
-	backOff backoff.BackOff,
 ) error {
 	ctx, cancelStream := context.WithCancel(ctx)
 	defer cancelStream()
@@ -257,19 +256,6 @@ func (c *GrpcClient) handleJobStream(
 
 	log.Debug("job stream handshake sent successfully")
 
-	// The stream is up, so reset the backoff. This matters for two reasons,
-	// both caused by the backoff lib not resetting its state on a successful
-	// connection:
-	//  1. Without a reset, after a connect followed by an error the next retry
-	//     starts from the accumulated (large) interval instead of retrying
-	//     promptly, delaying reconnection.
-	//  2. Worse, once the accumulated elapsed time exceeds MaxElapsedTime, the
-	//     next stream error makes NextBackOff() return Stop, so the retry loop
-	//     exits immediately. That error is then mislabeled unrecoverable and
-	//     bubbles up to trigger a full engine restart / data-plane teardown
-	//     instead of a silent reconnection.
-	backOff.Reset()
-
 	// Main loop: receive, process, respond
 	for {
 		jobReq, err := c.receiveJobRequest(ctx, stream, serverPubKey)
@@ -385,7 +371,7 @@ func (c *GrpcClient) sendJobResponse(
 	return nil
 }
 
-func (c *GrpcClient) handleSyncStream(ctx context.Context, serverPubKey wgtypes.Key, sysInfo *system.Info, msgHandler func(msg *proto.SyncResponse) error, backOff backoff.BackOff) error {
+func (c *GrpcClient) handleSyncStream(ctx context.Context, serverPubKey wgtypes.Key, sysInfo *system.Info, msgHandler func(msg *proto.SyncResponse) error) error {
 	ctx, cancelStream := context.WithCancel(ctx)
 	defer cancelStream()
 
@@ -404,19 +390,6 @@ func (c *GrpcClient) handleSyncStream(ctx context.Context, serverPubKey wgtypes.
 	c.notifyConnected()
 	c.setSyncStreamConnected()
 
-	// The stream is up, so reset the backoff. This matters for two reasons,
-	// both caused by the backoff lib not resetting its state on a successful
-	// connection:
-	//  1. Without a reset, after a connect followed by an error the next retry
-	//     starts from the accumulated (large) interval instead of retrying
-	//     promptly, delaying reconnection.
-	//  2. Worse, once the accumulated elapsed time exceeds MaxElapsedTime, the
-	//     next stream error makes NextBackOff() return Stop, so the retry loop
-	//     exits immediately. That error is then mislabeled unrecoverable and
-	//     bubbles up to trigger a full engine restart / data-plane teardown
-	//     instead of a silent reconnection.
-	backOff.Reset()
-
 	// blocking until error
 	err = c.receiveUpdatesEvents(stream, serverPubKey, msgHandler)
 	if err != nil {

shared/management/types/network.go

@@ -47,6 +47,10 @@ type NetworkMap struct {
 	ForwardingRules     []*ForwardingRule
 	AuthorizedUsers     map[string]map[string]struct{}
 	EnableSSH           bool
+	// ForceRoutingPeerDNSResolution forces the peer to run/use routing-peer DNS
+	// resolution regardless of the account-global setting, for reverse-proxy
+	// domain targets.
+	ForceRoutingPeerDNSResolution bool
 }
 
 func (nm *NetworkMap) Merge(other *NetworkMap) {
@@ -56,6 +60,7 @@ func (nm *NetworkMap) Merge(other *NetworkMap) {
 	nm.FirewallRules = mergeUnique(nm.FirewallRules, other.FirewallRules)
 	nm.RoutesFirewallRules = mergeUnique(nm.RoutesFirewallRules, other.RoutesFirewallRules)
 	nm.ForwardingRules = mergeUnique(nm.ForwardingRules, other.ForwardingRules)
+	nm.ForceRoutingPeerDNSResolution = nm.ForceRoutingPeerDNSResolution || other.ForceRoutingPeerDNSResolution
 }
 
 type comparableObject[T any] interface {

shared/management/types/networkmap_components.go

@@ -56,6 +56,11 @@ type NetworkMapComponents struct {
 
 	// true when returning an empty-like map (returned instead of nil)
 	empty bool
+
+	// ForceRoutingPeerDNSResolution forces the peer to run/use routing-peer DNS
+	// resolution regardless of the account-global setting, for reverse-proxy
+	// domain targets.
+	ForceRoutingPeerDNSResolution bool
 }
 
 type routeIndexEntry struct {
@@ -190,6 +195,8 @@ func (c *NetworkMapComponents) Calculate(ctx context.Context) *NetworkMap {
 		RoutesFirewallRules: append(networkResourcesFirewallRules, routesFirewallRules...),
 		AuthorizedUsers:     authorizedUsers,
 		EnableSSH:           sshEnabled,
+
+		ForceRoutingPeerDNSResolution: c.ForceRoutingPeerDNSResolution,
 	}
 }
 

sharedsock/sock_linux.go

@@ -24,7 +24,7 @@ import (
 )
 
 // ErrSharedSockStopped indicates that shared socket has been stopped
-var ErrSharedSockStopped = fmt.Errorf("shared socket stopped")
+var ErrSharedSockStopped = fmt.Errorf("shared socked stopped")
 
 // SharedSocket is a net.PacketConn that initiates two raw sockets (ipv4 and ipv6) and listens to UDP packets filtered
 // by BPF instructions (e.g., IncomingSTUNFilter that checks and sends only STUN packets to the listeners (ReadFrom)).