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DNS server (lemmy.world)

submitted 3 days ago by iturnedintoanewt@lemmy.world to c/selfhosted@lemmy.world

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Hi guys! So...I have a self-hosted DNS server. Initially I'd use pihole, with unbound, and the more or less basic blocklists. But from time to time things would start acting wonky. Sometimes a reboot would fix it. Sometimes...not really and I was really not sure what was going wrong, but it was clearly DNS. Changing the clients settings from my own server to something like 9.9.9.9 would immediately get it sorted out.

So I went with an adguard server. In the last few days I've started to notice weird behaviors. Today I've lost the Azure desktop I was connected, and it was very clearly looking like DNS. So I checked...and yup, 9.9.9.9 again would sort it all out. So...I'm not sure what's going wrong. I'm selfhosting these on an LXC container in proxmox. Nothing else seems to have issues connecting, and I see almost no resources being used. Any ideas? Any other DNS server I might be able to try?

Thanks!

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[–] pishadoot@sh.itjust.works 1 points 2 days ago (1 children)

If pi hole is configured to use another DNS it will still forward your request, just not to your ISP DNS server. Essentially you're providing your DNS requests to a 3rd party, for a slight boost to performance (because they'll have tons of stuff cached and can do recursive queries faster if you're requesting a site not in their cache.) Your web pages will load faster because you don't have an SBC trying to manually figure out what's the IP for bigfuckdaddyhairbrushemporium.net

The downside is you're exposing your DNS queries to a 3rd party and it's a bit of a privacy hit, as the upstream DNS server you select has your public IP correlated with your DNS requests. Doesn't really matter to most, but it does for some.

[–] Onomatopoeia@lemmy.cafe 1 points 10 hours ago

Thanks for the clarification.

How is that different than unbound? Isn't it also forwarding requests?