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* bug#30540: ssh: No user exists for uid 1000
@ 2018-02-19 23:06 Andreas Enge
  2018-02-20  0:30 ` Leo Famulari
  0 siblings, 1 reply; 6+ messages in thread
From: Andreas Enge @ 2018-02-19 23:06 UTC (permalink / raw)
  To: 30540

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

^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#30540: ssh: No user exists for uid 1000
  2018-02-19 23:06 bug#30540: ssh: No user exists for uid 1000 Andreas Enge
@ 2018-02-20  0:30 ` Leo Famulari
  2018-02-20 10:08   ` Andreas Enge
  0 siblings, 1 reply; 6+ messages in thread
From: Leo Famulari @ 2018-02-20  0:30 UTC (permalink / raw)
  To: Andreas Enge; +Cc: 30540-done

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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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^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#30540: ssh: No user exists for uid 1000
  2018-02-20  0:30 ` Leo Famulari
@ 2018-02-20 10:08   ` Andreas Enge
  2018-02-20 11:54     ` Leo Famulari
  0 siblings, 1 reply; 6+ messages in thread
From: Andreas Enge @ 2018-02-20 10:08 UTC (permalink / raw)
  To: Leo Famulari; +Cc: 30540-done

Hello Leo,

On Mon, Feb 19, 2018 at 07:30:44PM -0500, Leo Famulari wrote:
> We discussed this previously in <https://bugs.gnu.org/30298>.
> On Debian Stretch, I found that `apt-get install nscd` was sufficient.
> I'm going to merge this report with #30298.

thank you for your helpful reply and for merging the bugs. Indeed your
suggested solution works and, for the record, also fixed fetchmail, which
was affected as well.

Andreas

^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#30540: ssh: No user exists for uid 1000
  2018-02-20 10:08   ` Andreas Enge
@ 2018-02-20 11:54     ` Leo Famulari
  2018-02-20 12:08       ` Andreas Enge
  0 siblings, 1 reply; 6+ messages in thread
From: Leo Famulari @ 2018-02-20 11:54 UTC (permalink / raw)
  To: Andreas Enge; +Cc: 30540-done

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On Tue, Feb 20, 2018 at 11:08:17AM +0100, Andreas Enge wrote:
> Hello Leo,
> 
> On Mon, Feb 19, 2018 at 07:30:44PM -0500, Leo Famulari wrote:
> > We discussed this previously in <https://bugs.gnu.org/30298>.
> > On Debian Stretch, I found that `apt-get install nscd` was sufficient.
> > I'm going to merge this report with #30298.
> 
> thank you for your helpful reply and for merging the bugs. Indeed your
> suggested solution works and, for the record, also fixed fetchmail, which
> was affected as well.

Great!

I do wonder if we should configure glibc with --enable-obsolete-nsl,
which apparentely restores the old behavior, at least until deprecation
turns into removal. I guess it depends on how many complaints there are,
and how soon we can rebuild glibc.

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^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#30540: ssh: No user exists for uid 1000
  2018-02-20 11:54     ` Leo Famulari
@ 2018-02-20 12:08       ` Andreas Enge
  2018-02-20 12:52         ` Leo Famulari
  0 siblings, 1 reply; 6+ messages in thread
From: Andreas Enge @ 2018-02-20 12:08 UTC (permalink / raw)
  To: Leo Famulari; +Cc: 30540-done

On Tue, Feb 20, 2018 at 06:54:30AM -0500, Leo Famulari wrote:
> I do wonder if we should configure glibc with --enable-obsolete-nsl,
> which apparentely restores the old behavior, at least until deprecation
> turns into removal. I guess it depends on how many complaints there are,
> and how soon we can rebuild glibc.

Maybe an item in the release notes would be enough? In general I am in
favour of going forward and not enabling obsolete features.

Andreas

^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#30540: ssh: No user exists for uid 1000
  2018-02-20 12:08       ` Andreas Enge
@ 2018-02-20 12:52         ` Leo Famulari
  0 siblings, 0 replies; 6+ messages in thread
From: Leo Famulari @ 2018-02-20 12:52 UTC (permalink / raw)
  To: Andreas Enge; +Cc: 30540-done

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On Tue, Feb 20, 2018 at 01:08:10PM +0100, Andreas Enge wrote:
> On Tue, Feb 20, 2018 at 06:54:30AM -0500, Leo Famulari wrote:
> > I do wonder if we should configure glibc with --enable-obsolete-nsl,
> > which apparentely restores the old behavior, at least until deprecation
> > turns into removal. I guess it depends on how many complaints there are,
> > and how soon we can rebuild glibc.
> 
> Maybe an item in the release notes would be enough? In general I am in
> favour of going forward and not enabling obsolete features.

I'm in favor of this choice, too.

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^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2018-02-20 12:53 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-02-19 23:06 bug#30540: ssh: No user exists for uid 1000 Andreas Enge
2018-02-20  0:30 ` Leo Famulari
2018-02-20 10:08   ` Andreas Enge
2018-02-20 11:54     ` Leo Famulari
2018-02-20 12:08       ` Andreas Enge
2018-02-20 12:52         ` Leo Famulari

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