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Re: Persistent failure to lookup hostname

From: tomas
Subject: Re: Persistent failure to lookup hostname
Date: Tue, 4 Oct 2022 11:40:02 +0200

On Tue, Oct 04, 2022 at 11:30:08AM +0200, Robert Pluim wrote:
> >>>>> On Tue, 4 Oct 2022 10:05:29 +0200, <tomas@tuxteam.de> said:
>     tomas> On Tue, Oct 04, 2022 at 09:37:53AM +0200, Robert Pluim wrote:
>     >> sudo tcpdump -i any -n udp and port 53
>     tomas> "Out of Emacs" can mean different things :)


> Yes, and then there is dnsmasq, and the upstream DSL 'routerʼ might be
> caching DNS, etc etc. Checking the network traffix just helps in
> finding out who to blame :-)

You would see the latter with tcpdump (make sure to include local
interfaces to catch dnsmasq). But you wouldn't catch nscd (no network
traffic) and possibly not systemd-resolved or how it's called.


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