mlsmayconandClaude Fable 5.1 09cc91886f [management] Refuse to pin an agent network gateway onto another account's host
An agent network bootstrap stores the cluster it pins to as proxy_address,
and that value selects the proxy that serves the endpoint. An account-scoped
proxy only ever receives its own account's mappings, so a pin onto a host
another account's proxy declares can never be served — and the endpoint it
assigns is immutable, so the account is left with a dead gateway until it
deletes its settings and starts over. Nothing refused that pin: the domain
unique index arbitrates between pins only, and knows nothing about proxies.

Both bootstrap paths now ask, before the insert, whether a proxy owned by a
different account declares the host. Shared proxies are not foreign — a
shared cluster is what most accounts pin to, and any number of them may —
and a host no proxy has declared stays pinnable, since claiming the address
before the proxy's first connection is the documented order. Ownership is
decided on the proxy rows, not on heartbeat freshness, and on the folded
spelling, since proxies declare their address as the operator typed it.

Registration is deliberately not changed: refusing a proxy because another
account pinned its host would let a pin lock a tenant's proxy out once the
stale-proxy reaper has dropped its rows. Left as is, the worst a race or a
reaping window can produce is a dead pin for the account that made it.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Sa3DsBDP3VciAi4PPG17L6
2026-09-12 16:50:49 +00:00
2026-08-01 08:17:03 +09:00
2026-09-01 12:38:06 +02:00

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🤖 NetBird Agent Network (Beta)

Identity-aware access control for AI agents — keyless access to LLM APIs and private resources over the encrypted NetBird tunnel. See agent-network/ or read the docs at netbird.ai.

NetBird combines a configuration-free peer-to-peer private network and a centralized access control system in a single platform, making it easy to create secure private networks for your organization or home.

Connect. NetBird creates a WireGuard-based overlay network that automatically connects your machines over an encrypted tunnel, leaving behind the hassle of opening ports, complex firewall rules, VPN gateways, and so forth.

Secure. NetBird enables secure remote access by applying granular access policies while allowing you to manage them intuitively from a single place. Works universally on any infrastructure.

https://github.com/user-attachments/assets/10cec749-bb56-4ab3-97af-4e38850108d2

Self-host NetBird (video)

Watch the video

Key features

Connectivity Management Security Automation Platforms
✓ Kernel WireGuard ✓ Admin Web UI ✓ SSO & MFA support ✓ Public API ✓ Linux
✓ Peer-to-peer connections ✓ Auto peer discovery and configuration ✓ Access control: groups & rules ✓ Setup keys for bulk provisioning ✓ macOS
✓ Connection relay fallback ✓ IdP integrations ✓ Activity logging ✓ Self-hosting quickstart script ✓ Windows
✓ Routes to external networks ✓ Private DNS ✓ Traffic events ✓ IdP groups sync with JWT ✓ Android
✓ Domain-based DNS routes ✓ Custom DNS zones ✓ Device posture checks ✓ Terraform provider ✓ Android TV
✓ Exit nodes ✓ Multiuser support ✓ Peer-to-peer encryption ✓ Ansible collection ✓ iOS
✓ IPv6 dual-stack overlay ✓ Multi-account profile switching ✓ SSH with central access policies ✓ Apple TV
✓ Browser SSH & RDP ✓ Quantum-resistance with Rosenpass ✓ FreeBSD
✓ Reverse proxy with auto-TLS ✓ Periodic re-authentication ✓ pfSense
✓ OPNsense
✓ MikroTik RouterOS
✓ OpenWRT
✓ Synology
✓ TrueNAS
✓ Proxmox
✓ Raspberry Pi
✓ Serverless
✓ Container

Quickstart with NetBird Cloud

Quickstart with self-hosted NetBird

This is the quickest way to try self-hosted NetBird. It should take around 5 minutes to get started if you already have a public domain and a VM. Follow the Advanced guide with a custom identity provider for installations with different IdPs.

Infrastructure requirements:

  • A Linux VM with at least 1 CPU and 2 GB of memory.
  • The VM should be publicly accessible on TCP ports 80 and 443 and UDP port 3478.
  • A public domain name pointing to the VM.

Software requirements:

Steps

  • Download and run the installation script:
export NETBIRD_DOMAIN=netbird.example.com; curl -fsSL https://github.com/netbirdio/netbird/releases/latest/download/getting-started.sh | bash

A bit on NetBird internals

  • Every machine in the network runs the NetBird agent, which manages WireGuard.
  • Every agent connects to the Management Service, which holds network state, manages peer IPs, and distributes updates to agents.
  • Agents use ICE (via pion/ice) to discover connection candidates for peer-to-peer connections.
  • Candidates are discovered with the help of STUN servers.
  • Agents negotiate a connection through the Signal Service, exchanging end-to-end encrypted messages with candidates.
  • When NAT traversal fails (e.g. mobile carrier-grade NAT) and a direct p2p connection isn't possible, the system falls back to a Relay Service and a secure WireGuard tunnel is established through it.

NetBird high-level architecture diagram

See a complete architecture overview for details.

Community projects

Note: The main branch may be in an unstable or even broken state during development. For stable versions, see releases.

Support acknowledgement

In November 2022, NetBird joined the StartUpSecure program sponsored by the Federal Ministry of Education and Research of the Federal Republic of Germany. Together with the CISPA Helmholtz Center for Information Security, NetBird brings security best practices and simplicity to private networking.

CISPA_Logo_BLACK_EN_RZ_RGB (1)

Acknowledgements

We build on open source technologies like WireGuard®, Pion ICE, and Rosenpass. We greatly appreciate the work these projects are doing, and we'd love it if you could support them too (e.g., by starring or contributing).

This repository is licensed under the BSD-3-Clause license, which applies to all parts of the repository except for the directories management/, signal/ and relay/. Those directories are licensed under the GNU Affero General Public License version 3.0 (AGPLv3). See the respective LICENSE files inside each directory.

WireGuard and the WireGuard logo are registered trademarks of Jason A. Donenfeld.

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