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Help to troubleshoot a pihole (with unbound)...

Hi guys!

So, it seems I’m getting again stuck with my pihole, seems it might not resolve domains I know that are new to it… So, if I try to visit the website from my browser (firefox or ungoogle chromium), it gets a DNS failure. Same with a nslookup. But if I connect to the pihole and do a: dig saigoneer.com @127.0.0.1 -p 5335 I get the full response and resolution. But even in the pihole, attempting nslookup saigoneer.com will fail. Any idea what can I try next?

Thanks!

volle ,

Have you checked if you’re rate limited? I was getting rate limited while downloading games from steam which took me several hours to debug.

Not sure if this is your problem but it might be a thing to check out.

iturnedintoanewt OP ,

Rate limited…by whom? I’m using unbound, so I’m not forwarding my DNS requests to my ISP.

volle ,

By pihole. Iirc the default limit is 1000 requests per minute

iturnedintoanewt OP ,

Welp…Not sure what was wrong, but seems to now be resolving again. I…restored a few previous backups to no avail, rebooted to no avail…and after just giving up and upgrading, and rebooting…now it seems to work again. And I still have no idea how to troubleshoot this if it ever happens again :(

Tunawithshoes ,

This is the reason I stopped unbound. My unbound worked great for years. Suddenly I got this weird issue that was no one could understand why. And after a week of trying to trouble it just decided to work and kept going happily.

filister ,

Try with dig to check what DNS you are using. And check if you have support for both IPv4 and IPv6.

iturnedintoanewt OP ,

I have purposely disabled IPv6 everywhere. Router, Pihole etc. What do you mean which DNS am I using? The computer failing to resolve, or the Pihole that successfully resolves with dig, but somehow fails to actually resolve it to the pihole request/requesting computer?

flathead ,
@flathead@quex.cc avatar

is your router’s dns definitely pointed to the pihole and was the router rebooted after that was set?

iturnedintoanewt OP ,

If you mean by the DNS provided by the router on DHCP, yes, they are.

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