[GH-ISSUE #3619] [client] Custom DNS cannot resolve CNAME records. #7234

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saavagebueno · 2026-08-05T01:12:07-04:00

saavagebueno commented

2026-08-05 01:12:07 -04:00

Originally created by @Cikaros on GitHub (Apr 4, 2025).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/3619

Originally assigned to: @nazarewk on GitHub.

I encountered issues while attempting to configure a CNAME record for custom DNS, as the netbird client does not support CNAME resolution on Windows and Linux. However, it is quite strange that using PowerShell's Resolve-DnsName can query the correct CNAME record, while nslookup.exe and browsers are unable to resolve it properly.

Originally created by @Cikaros on GitHub (Apr 4, 2025). Original GitHub issue: https://github.com/netbirdio/netbird/issues/3619 Originally assigned to: @nazarewk on GitHub. I encountered issues while attempting to configure a CNAME record for custom DNS, as the netbird client does not support CNAME resolution on Windows and Linux. However, it is quite strange that using PowerShell's `Resolve-DnsName` can query the correct CNAME record, while `nslookup.exe` and browsers are unable to resolve it properly.

saavagebueno added the bug dns labels 2026-08-05 01:12:08 -04:00

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Reference: DYNR/netbird#7234