After clean reinstall of Big Sur, VPN's (Privado) DNS never gets assigned

[AJ Nervo]

I backed up Tunnelblick config, wiped and reinstalled Big Sur, reinstalled Tunnelblick (latest beta) and imported the config file. Everything looked exactly as it had prior to wipe/reinstall, but suddenly now whenever I make any VPN connection it assigns random Cloudflare DNS servers instead of the VPN-assigned DNS. I don't remember doing anything special with anything related to DNS for it work fine before. This is probably simple but I can't figure it out. Aside from a clean OS/Tunnelblick reinstall, I would lean pretty hard on "nothing has changed".

[Tunnelblick developer]

Please post the diagnostic info obtained by following the instructions at Read Before You Post.

[Tunnelblick developer]

You'll have to talk to your VPN Service Provider, apparently privado.io.

On Friday, July 29, 2022 at 11:25:28 PM UTC-4 AJ Nervo wrote:

Diagnostic attached.

--
You received this message because you are subscribed to a topic in the Google Groups "tunnelblick-discuss" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/tunnelblick-discuss/1ErL2SQLP70/unsubscribe.
To unsubscribe from this group and all its topics, send an email to tunnelblick-dis...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/tunnelblick-discuss/f87f3584-493c-40ac-a9a2-b8908d05351an%40googlegroups.com.

[AJ Nervo]

After days of banging my head and contemplating the dangling threads of reality, on a whim I thought why not try dnsleakest.com in a different browser (I always use Firefox). Lo and behold, Safari and Chromium both spit out my VPN's DNS server as the lone result. It instantly snapped in my pea brain that Firefox has a DNS-over-HTTPS option, and sure enough it was enabled by default and pointing to Cloudflare. After disabling that feature, all DNS leak test results in Firefox now show the VPN's DNS as the only result.

[Tunnelblick developer]

Thanks for reporting back the cause of the problem.