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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What is Debian missing to install pihole? (feddit.nl)
submitted 5 months ago by fort_burp@feddit.nl to c/debian@lemmy.ml
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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€“] fort_burp@feddit.nl 2 points 5 months ago

Yes! It has a firewall! :D

Turning it off yielded the same results :(

Ping works only by IP address. Pinging a hostname gives me Temporary failure in name resolution

Dig gives me SERVFAIL but at least it's using the right DNS resolver (the pihole installed on the same computer)

;; SERVER: 192.168.1.102#53(192.168.1.102) (UDP)

and pihole.log is full of

query[A] github.com from 192.168.1.102
2025-08-xxx forwarded github.com to 127.0.0.1#5335
2025-08-xxx forwarded github.com to 127.0.0.1#5335
2025-08-xxx reply error is SERVFAIL

Trying to update gravity on the pihole browser dashboard (which at least works) gives me

try to update gravity

  [โœ—] DNS resolution is currently unavailable
  [i] Waiting up to 120 seconds for DNS resolution............

But I wonder what it means that all queries are coming from a client named pihole. On other installations it just shows the client as their local IP address.

Client:  pi.hole 192.168.1.102
Query Status:  Forwarded, reply from 127.0.0.1#5335
Reply:  SERVFAIL

Thanks for your help!