e5d4947d60
* Optimize Windows DNS performance with domain batching and batch mode Implement two-layer optimization to reduce Windows NRPT registry operations: 1. Domain Batching (host_windows.go): - Batch domains per NRPT - Reduces NRPT rules by ~97% (e.g., 184 domains: 184 rules → 4 rules) - Modified addDNSMatchPolicy() to create batched NRPT entries - Added comprehensive tests in host_windows_test.go 2. Batch Mode (server.go): - Added BeginBatch/EndBatch methods to defer DNS updates - Modified RegisterHandler/DeregisterHandler to skip applyHostConfig in batch mode - Protected all applyHostConfig() calls with batch mode checks - Updated route manager to wrap route operations with batch calls * Update tests * Fix log line * Fix NRPT rule index to ensure cleanup covers partially created rules * Ensure NRPT entry count updates even on errors to improve cleanup reliability * Switch DNS batch mode logging from Info to Debug level * Fix batch mode to not suppress critical DNS config updates Batch mode should only defer applyHostConfig() for RegisterHandler/ DeregisterHandler operations. Management updates and upstream nameserver failures (deactivate/reactivate callbacks) need immediate DNS config updates regardless of batch mode to ensure timely failover. Without this fix, if a nameserver goes down during a route update, the system DNS config won't be updated until EndBatch(), potentially delaying failover by several seconds. Or if you prefer a shorter version: Fix batch mode to allow immediate DNS updates for critical paths Batch mode now only affects RegisterHandler/DeregisterHandler. Management updates and nameserver failures always trigger immediate DNS config updates to ensure timely failover. * Add DNS batch cancellation to rollback partial changes on errors Introduces CancelBatch() method to the DNS server interface to handle error scenarios during batch operations. When route updates fail partway through, the DNS server can now discard accumulated changes instead of applying partial state. This prevents leaving the DNS configuration in an inconsistent state when route manager operations encounter errors. The changes add error-aware batch handling to prevent partial DNS configuration updates when route operations fail, which improves system reliability.
Start using NetBird at netbird.io
See Documentation
Join our Slack channel or our Community forum
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New: NetBird terraform provider
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.
Open Source Network Security in a Single Platform
https://github.com/user-attachments/assets/10cec749-bb56-4ab3-97af-4e38850108d2
Self-Host NetBird (Video)
Key features
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Quickstart with NetBird Cloud
- Download and install NetBird at https://app.netbird.io/install
- Follow the steps to sign-up with Google, Microsoft, GitHub or your email address.
- Check NetBird admin UI.
- Add more machines.
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 1CPU and 2GB of memory.
- The VM should be publicly accessible on TCP ports 80 and 443 and UDP port: 3478.
- Public domain name pointing to the VM.
Software requirements:
- Docker installed on the VM with the docker-compose plugin (Docker installation guide) or docker with docker-compose in version 2 or higher.
- jq installed. In most distributions
Usually available in the official repositories and can be installed with
sudo apt install jqorsudo yum install jq - curl installed.
Usually available in the official repositories and can be installed with
sudo apt install curlorsudo yum install curl
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
- Once finished, you can manage the resources via
docker-compose
A bit on NetBird internals
- Every machine in the network runs NetBird Agent (or Client) that manages WireGuard.
- Every agent connects to Management Service that holds network state, manages peer IPs, and distributes network updates to agents (peers).
- NetBird agent uses WebRTC ICE implemented in pion/ice library to discover connection candidates when establishing a peer-to-peer connection between machines.
- Connection candidates are discovered with the help of STUN servers.
- Agents negotiate a connection through Signal Service passing p2p encrypted messages with candidates.
- Sometimes the NAT traversal is unsuccessful due to strict NATs (e.g. mobile carrier-grade NAT) and a p2p connection isn't possible. When this occurs the system falls back to a relay server called TURN, and a secure WireGuard tunnel is established via the TURN server.
Coturn is the one that has been successfully used for STUN and TURN in NetBird setups.
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 CISPA Helmholtz Center for Information Security NetBird brings the security best practices and simplicity to private networking.
Testimonials
We use open-source technologies like WireGuard®, Pion ICE (WebRTC), Coturn, and Rosenpass. We very much appreciate the work these guys are doing and we'd greatly appreciate if you could support them in any way (e.g., by giving a star or a contribution).
Legal
This repository is licensed under BSD-3-Clause license that 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.