GNU bug report logs - #30540
ssh: No user exists for uid 1000

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Andreas Enge <andreas <at> enge.fr>
Subject: bug#30540: closed (Re: bug#30540: ssh: No user exists for uid 1000)
Date: Tue, 20 Feb 2018 00:31:01 +0000

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Your bug report

#30540: ssh: No user exists for uid 1000

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 30540 <at> debbugs.gnu.org.

-- 
30540: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=30540
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Leo Famulari <leo <at> famulari.name>
To: Andreas Enge <andreas <at> enge.fr>
Cc: 30540-done <at> debbugs.gnu.org
Subject: Re: bug#30540: ssh: No user exists for uid 1000
Date: Mon, 19 Feb 2018 19:30:44 -0500

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On Tue, Feb 20, 2018 at 12:06:45AM +0100, Andreas Enge wrote:
> it looks like the glibc change when merging core-updates caused us to be
> bitten by a bug that is known on NixOS:
>    https://github.com/NixOS/nixpkgs/issues/31762
> 
> When I type "ssh whatever" (literally, or replacing "whatever" by a real
> server name), then the error message
>    No user exists for uid 1000
> is printed and the ssh command is not executed.

The issue is that glibc 2.26 deprecated the "compat" query type of the
Name Service Switch.

We discussed this previously in <https://bugs.gnu.org/30298>.

One can adjust to the change by either using the nscd daemon [0] or
editing /etc/nsswitch.conf and replacing instances of 'compat' with
'files'.

On Debian Stretch, I found that `apt-get install nscd` was sufficient.

I'm going to merge this report with #30298.

[0] We already "strongly recommend" using nscd:
https://www.gnu.org/software/guix/manual/html_node/Application-Setup.html#Name-Service-Switch-1

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From: Andreas Enge <andreas <at> enge.fr>
To: bug-guix <at> gnu.org
Subject: ssh: No user exists for uid 1000
Date: Tue, 20 Feb 2018 00:06:45 +0100

Hello,

it looks like the glibc change when merging core-updates caused us to be
bitten by a bug that is known on NixOS:
   https://github.com/NixOS/nixpkgs/issues/31762

When I type "ssh whatever" (literally, or replacing "whatever" by a real
server name), then the error message
   No user exists for uid 1000
is printed and the ssh command is not executed.

I am using guix on top of debian.

Andreas

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