this post was submitted on 27 Aug 2025
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Debian operating system

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Debian is a free operating system (OS) for your computer. An operating system is the set of basic programs and utilities that make your computer run. Debian provides more than a pure OS: it comes with over 59000 packages, precompiled software bundled up in a nice format for easy installation on your machine.

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I've installed it on Ubuntu and Raspberry Pi but when I went to my friend's house today to install it on his Debian 12 laptop I couldn't get it to work. It might have just been general networking problems but is Debian shipped without a package that's needed for pihole?

The result of my attempt was strange- dig showed the computer was using 127.0.0.1#53 for DNS resolver, the pihole dashboard in the browser showed the queries, but Firefox kept saying it can't find the page. It was kind of embarrassing since I talked up pihole a lot and couldn't get it to work lol.

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[โ€“] bjoern_tantau@swg-empire.de 5 points 3 days ago (2 children)

Maybe Firefox was configured for DoH. Then it wouldn't use the OSs DNS settings.

[โ€“] fort_burp@feddit.nl 2 points 1 day ago

No, it wasn't that :/

The other thing that's strange is that it all queries are coming from the client pihole:

Client:  pi.hole <local IP address>
Query Status:  Forwarded, reply from 127.0.0.1#5335
Reply:  SERVFAIL

The pihole is installed on the same computer that it's supposed to be the DNS resolver for (no access to router). I followed the instructions to the tee when installing pihole + unbound from the pihole website, but for some reason it's not working. All queries get SERVFAIL :/

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