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bug#22209: name resolution failures in installer image

From: Ludovic Courtès
Subject: bug#22209: name resolution failures in installer image
Date: Tue, 03 May 2016 22:26:31 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

address@hidden (Ludovic Courtès) skribis:

> address@hidden (Ludovic Courtès) skribis:
>> Ricardo Wurmus <address@hidden> skribis:
> [...]
>>> Could this be related to cached resolution failures in nscd?  Have you
>>> tried restarting the nscd service?
>> That sounds likely.
>> Nscd caches negative lookups, but normally only for 20 seconds (see
>> %nscd-minimal-caches in (gnu system install)).  So if you look up
>> hydra.gnu.org before the network is set up, it’ll remember for 20s that
>> this is a lookup failure, even if you’ve set up the network in the
>> meantime.
> Commit c96ba2c disables caching of lookup failures altogether.

0.10.0 uses this fix and we haven’t heard from name resolution failures
in the installer image, so I’m closing it.


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