[PR #1637] Enhance DNS failover reliability #17653

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saavagebueno · 2026-08-05T04:07:34-04:00

saavagebueno commented

2026-08-05 04:07:34 -04:00

Original Pull Request: https://github.com/netbirdio/netbird/pull/1637

State: closed
Merged: Yes

Describe your changes

This PR strengthens DNS failover by:

Increasing gRPC connection timeouts.
Adding a timeout option to resolv.conf for prompt failover.
Prioritizing failovers by removing the rotate option.
Removing the Netbird nameserver during backup file restoration (if it's the first entry).
Fixing an array indexing issue.

Issue ticket number and link

Relates to #1618

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)
Extended the README / documentation, if necessary

**Original Pull Request:** https://github.com/netbirdio/netbird/pull/1637 **State:** closed **Merged:** Yes --- ## Describe your changes This PR strengthens DNS failover by: - Increasing gRPC connection timeouts. - Adding a timeout option to resolv.conf for prompt failover. - Prioritizing failovers by removing the rotate option. - Removing the Netbird nameserver during backup file restoration (if it's the first entry). - Fixing an array indexing issue. ## Issue ticket number and link Relates to #1618 ### Checklist - [x] Is it a bug fix - [ ] Is a typo/documentation fix - [ ] Is a feature enhancement - [ ] It is a refactor - [x] Created tests that fail without the change (if possible) - [ ] Extended the README / documentation, if necessary

saavagebueno added the pull-request label 2026-08-05 04:07:34 -04:00

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Reference: DYNR/netbird#17653