[PR #4633] [CLOSED] [server] add interface name to DNS state on Darwin #25925

New Issue

saavagebueno · 2026-08-05T07:06:39-04:00

saavagebueno commented

2026-08-05 07:06:39 -04:00

📋 Pull Request Information

Original PR: https://github.com/netbirdio/netbird/pull/4633
Author: @siriobalmelli
Created: 10/13/2025
Status: ❌ Closed

Base: main ← Head: main

📄 Description

Describe your changes

Fix bug on Darwin where different instances of netbird clobber each other's DNS entries:
disambiguate 'netbirdDNSStateKeyFormat' by including the interface name.

Issue ticket number and link

Related to https://github.com/netbirdio/netbird/issues/446: allows proper DNS resolution when multiple server instances are run on Darwin/MacOS, each instance with its own interface and state.

Stack

Checklist

Is it a bug fix
Is a typo/documentation fix
Is a feature enhancement
It is a refactor
Created tests that fail without the change (if possible)

By submitting this pull request, you confirm that you have read and agree to the terms of the Contributor License Agreement.

Documentation

Select exactly one:

I added/updated documentation for this change
Documentation is not needed for this change (explain why)

It is reasonable to assume that multiple instances of netbird server can run on a Darwin machine, as long as they bind to different interfaces and have separate runtime and state directories; in this case each should push its own independent resolver record to the resolver.

This is already the case on Linux, and this bugfix brings feature parity to Darwin.

Summary by CodeRabbit

New Features
- Per-interface scoping for DNS state to isolate DNS settings per network interface on macOS.
Bug Fixes
- Improved DNS configuration and restoration during shutdown to prevent cross-instance conflicts and reliably restore prior settings.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/netbirdio/netbird/pull/4633 **Author:** [@siriobalmelli](https://github.com/siriobalmelli) **Created:** 10/13/2025 **Status:** ❌ Closed **Base:** `main` ← **Head:** `main` --- ### 📄 Description ## Describe your changes Fix bug on Darwin where different instances of netbird clobber each other's DNS entries: disambiguate 'netbirdDNSStateKeyFormat' by including the interface name. ## Issue ticket number and link Related to https://github.com/netbirdio/netbird/issues/446: allows proper DNS resolution when multiple server instances are run on Darwin/MacOS, each instance with its own interface and state. ## Stack  ### Checklist - [x] Is it a bug fix - [ ] Is a typo/documentation fix - [ ] Is a feature enhancement - [ ] It is a refactor - [ ] Created tests that fail without the change (if possible) > By submitting this pull request, you confirm that you have read and agree to the terms of the [Contributor License Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md). ## Documentation Select exactly one: - [ ] I added/updated documentation for this change - [x] Documentation is **not needed** for this change (explain why) It is reasonable to assume that multiple instances of `netbird server` can run on a Darwin machine, as long as they bind to different interfaces and have separate runtime and state directories; in this case each should push its own independent resolver record to the resolver. This is already the case on Linux, and this bugfix brings feature parity to Darwin.  ## Summary by CodeRabbit * **New Features** * Per-interface scoping for DNS state to isolate DNS settings per network interface on macOS. * **Bug Fixes** * Improved DNS configuration and restoration during shutdown to prevent cross-instance conflicts and reliably restore prior settings.  --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

saavagebueno added the pull-request label 2026-08-05 07:06:39 -04:00

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Reference: DYNR/netbird#25925