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Re: Persistent failure to lookup hostname
From: |
Stefan Monnier |
Subject: |
Re: Persistent failure to lookup hostname |
Date: |
Tue, 04 Oct 2022 09:27:03 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Robert Pluim [2022-10-04 09:37:53] wrote:
>>>>>> On Mon, 03 Oct 2022 20:15:19 -0400, Stefan Monnier
>>>>>> <monnier@iro.umontreal.ca> said:
> Stefan> Lars Ingebrigtsen [2022-10-04 01:58:28] wrote:
> >> Stefan Monnier <monnier@iro.umontreal.ca> writes:
> >>> My Gnus session occasionally gets into a state where it insists that
> my
> >>> mail server's DNS name isn't found.
> >> Is this with nnimap? (I'm mostly just wondering whether this could
> >> somehow be tied to the async code paths, which are more complicated
> than
> >> the synchronous code paths and keep more state -- but nnimap doesn't
> use
> >> async, so that would rule out that.)
>
> Stefan> Hmm... yes, I think it's always been for my IMAP server.
>
> One thing you absolutely need to check in these situations is if DNS queries
> are making it out of Emacs at all. e.g.
>
> sudo tcpdump -i any -n udp and port 53
>
> If theyʼre not, then maybe itʼs an issue with resolv.conf, as Madhu
> suggests.
Indeed, they may also be sent to "the wrong" nameserver (e.g. the
nameserver that was to be used back when I was working in that café the
other day).
Thanks,
Stefan
Re: Persistent failure to lookup hostname, Madhu, 2022/10/04
Re: Persistent failure to lookup hostname, Eli Zaretskii, 2022/10/04