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computers / comp.os.linux.networking / DNS issues in private network

SubjectAuthor
* DNS issues in private networkKyonshi
+- Re: DNS issues in private networkMarco Moock
`* Re: DNS issues in private networkCarlos E.R.
 `- Re: DNS issues in private networkKyonshi

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DNS issues in private network

<20240412150500.000062b6@gmail.com>

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From: gmke...@gmail.com (Kyonshi)
Newsgroups: comp.os.linux.networking
Subject: DNS issues in private network
Date: Fri, 12 Apr 2024 15:05:00 +0200
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 by: Kyonshi - Fri, 12 Apr 2024 13:05 UTC

I have a rather new, minimal installation of Rocky Linux 9 (so
effectively RHEL 9) and have a pihole running on another machine in my
private network. I have changed the nameservers on the Rocky Linux
machine to resolve via the pihole DNS on the local network.
All of a sudden the DNS stops resolving.

; <<>> DiG 9.16.23-RH <<>> google.com
;; global options: +cmd
;; connection timed out; no servers could be reached

Network connection still is there, only DNS resolution is affected. I
can ping the other machine. The pihole is running and it is resolving
for other machines, it just doesn't seem to work on this particular
machine.

Anyone got an idea what the issue might be?

Re: DNS issues in private network

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From: mm+usene...@dorfdsl.de (Marco Moock)
Newsgroups: comp.os.linux.networking
Subject: Re: DNS issues in private network
Date: Sat, 13 Apr 2024 21:00:17 +0200
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 by: Marco Moock - Sat, 13 Apr 2024 19:00 UTC

On 12.04.2024 um 15:05 Uhr Kyonshi wrote:

> Anyone got an idea what the issue might be?

Rund resolvectl and post the output here.

--
kind regards
Marco

Send spam to 1712927100muell@cartoonies.org

Re: DNS issues in private network

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From: robin_li...@es.invalid (Carlos E.R.)
Newsgroups: comp.os.linux.networking
Subject: Re: DNS issues in private network
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In-Reply-To: <20240412150500.000062b6@gmail.com>
 by: Carlos E.R. - Sat, 13 Apr 2024 20:32 UTC

On 2024-04-12 15:05, Kyonshi wrote:
> I have a rather new, minimal installation of Rocky Linux 9 (so
> effectively RHEL 9) and have a pihole running on another machine in my
> private network. I have changed the nameservers on the Rocky Linux
> machine to resolve via the pihole DNS on the local network.
> All of a sudden the DNS stops resolving.
>
> ; <<>> DiG 9.16.23-RH <<>> google.com
> ;; global options: +cmd
> ;; connection timed out; no servers could be reached
>
> Network connection still is there, only DNS resolution is affected. I
> can ping the other machine. The pihole is running and it is resolving
> for other machines, it just doesn't seem to work on this particular
> machine.
>
> Anyone got an idea what the issue might be?

Start with:

host -v google.com pi.hole.ip.address

--
Cheers, Carlos.

Re: DNS issues in private network

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From: gmke...@gmail.com (Kyonshi)
Newsgroups: comp.os.linux.networking
Subject: Re: DNS issues in private network
Date: Wed, 24 Apr 2024 13:28:31 +0200
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 by: Kyonshi - Wed, 24 Apr 2024 11:28 UTC

On 4/13/2024 10:32 PM, Carlos E.R. wrote:
> On 2024-04-12 15:05, Kyonshi wrote:
>> I have a rather new, minimal installation of Rocky Linux 9 (so
>> effectively RHEL 9) and have a pihole running on another machine in my
>> private network. I have changed the nameservers on the Rocky Linux
>> machine to resolve via the pihole DNS on the local network.
>> All of a sudden the DNS stops resolving.
>>
>> ; <<>> DiG 9.16.23-RH <<>> google.com
>> ;; global options: +cmd
>> ;; connection timed out; no servers could be reached
>>
>> Network connection still is there, only DNS resolution is affected. I
>> can ping the other machine. The pihole is running and it is resolving
>> for other machines, it just doesn't seem to work on this particular
>> machine.
>>
>> Anyone got an idea what the issue might be?
>
> Start with:
>
> host -v google.com pi.hole.ip.address
>
>

I had to install Rocky Linux 8 for other reasons and that solved this issue

--
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macroblog: https://gmkeros.wordpress.com
pictures: https://portfolio.pixelfed.de/kyonshi

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