GNU bug report logs - #30613
'avahi-resolve <host>.local' works but 'ssh <host>.local' fails w/ "Name or service not known"

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: George myglc2 Clemmer <myglc2 <at> gmail.com>
To: bug-guix <at> gnu.org
Subject: 'avahi-resolve <host>.local' works but 'ssh <host>.local' fails w/
 "Name or service not known"
Date: Mon, 26 Feb 2018 09:09:18 -0500

[Message part 1 (text/plain, inline)]

Running the attached config in a QEMU image, 'avahi-resolve
<host>.local' works but 'ssh <host>.local' fails w/ "Name or service not
known".

E.g, ...

g1 <at> server02 ~$ avahi-resolve --name nemo.local
nemo.local      fe80::1ccf:c589:7e5f:a21f

g1 <at> server02 ~$ ssh -vvv nemo.local
OpenSSH_7.6p1, OpenSSL 1.0.2n  7 Dec 2017
debug2: resolving "nemo.local" port 22
ssh: Could not resolve hostname nemo.local: Name or service not known

g1 <at> server02 ~$ guix --version
guix (GNU Guix) 0.14.0-9.bdf0c64

TIA - George

[server (application/octet-stream, attachment)]

Message #8 received at 30613 <at> debbugs.gnu.org (full text, mbox):

From: myglc2 <at> gmail.com
To: 30613 <at> debbugs.gnu.org
Subject: Re: bug#30613: 'avahi-resolve <host>.local' works but 'ssh
 <host>.local' fails w/ "Name or service not known"
Date: Tue, 27 Feb 2018 14:23:01 -0500

On 02/26/2018 at 09:09 George myglc2 Clemmer writes:

> Running the attached config in a QEMU image, 'avahi-resolve
> <host>.local' works but 'ssh <host>.local' fails w/ "Name or service not
> known".
>
> E.g, ...
>
> g1 <at> server02 ~$ avahi-resolve --name nemo.local
> nemo.local      fe80::1ccf:c589:7e5f:a21f
>
> g1 <at> server02 ~$ ssh -vvv nemo.local
> OpenSSH_7.6p1, OpenSSL 1.0.2n  7 Dec 2017
> debug2: resolving "nemo.local" port 22
> ssh: Could not resolve hostname nemo.local: Name or service not known
>
> g1 <at> server02 ~$ guix --version
> guix (GNU Guix) 0.14.0-9.bdf0c64
>
> TIA - George

FWIW, I notice irratic reports about starting avahi-daemon in
shepherd.log ...

g1 <at> g1 ~/bug/30613-avahi-resolve.works.ssh.doesnt/log$ grep avahi shepherd.log 
2018-02-25 22:08:26 Service avahi-daemon has been started.
2018-02-25 22:09:42 Service avahi-daemon has been started.
2018-02-27 08:27:15 Service avahi-daemon has been stopped.
2018-02-27 08:30:53 Service avahi-daemon has been started.
2018-02-27 08:55:23 Service avahi-daemon could not be started.
2018-02-27 11:26:12 Service avahi-daemon has been started.

... and when it does start, a warning about no NSS support in
/var/log/messages:

g1 <at> g1 ~/bug/30613-avahi-resolve.works.ssh.doesnt/log$ grep avahi debug
Feb 25 22:08:24 localhost avahi-daemon[346]: Found user 'avahi' (UID 998) and group 'avahi' (GID 983).
Feb 25 22:08:25 localhost avahi-daemon[346]: Successfully dropped root privileges.
Feb 25 22:08:25 localhost avahi-daemon[346]: avahi-daemon 0.7 starting up.
Feb 25 22:08:26 localhost avahi-daemon[346]: WARNING: No NSS support for mDNS detected, consider installing nss-mdns!
Feb 25 22:08:27 localhost avahi-daemon[346]: Successfully called chroot().
Binary file debug matches
g1 <at> g1 ~/bug/30613-avahi-resolve.works.ssh.doesnt/log$ 

HTH - George

Message #15 received at 30613-done <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: George myglc2 Clemmer <myglc2 <at> gmail.com>
Cc: 30613-done <at> debbugs.gnu.org
Subject: Re: bug#30613: 'avahi-resolve <host>.local' works but 'ssh
 <host>.local' fails w/ "Name or service not known"
Date: Sun, 18 Mar 2018 00:23:55 +0100

Hi,

George myglc2 Clemmer <myglc2 <at> gmail.com> skribis:

> Running the attached config in a QEMU image, 'avahi-resolve
> <host>.local' works but 'ssh <host>.local' fails w/ "Name or service not
> known".
>
> E.g, ...
>
> g1 <at> server02 ~$ avahi-resolve --name nemo.local
> nemo.local      fe80::1ccf:c589:7e5f:a21f
>
> g1 <at> server02 ~$ ssh -vvv nemo.local
> OpenSSH_7.6p1, OpenSSL 1.0.2n  7 Dec 2017
> debug2: resolving "nemo.local" port 22
> ssh: Could not resolve hostname nemo.local: Name or service not known

I believe this is fixed by commit
b34ac8248205d64b4023412e61512dfefe44cb9e.

Thanks,
Ludo’.

Message #18 received at 30613 <at> debbugs.gnu.org (full text, mbox):

From: myglc2 <at> gmail.com
To: 30613 <at> debbugs.gnu.org
Cc: ludo <at> gnu.org
Subject: Re: bug#30613: 'avahi-resolve <host>.local' works but 'ssh
 <host>.local' fails w/ "Name or service not known"
Date: Sat, 17 Mar 2018 21:49:57 -0400

Hi  Ludo’,

On 03/18/2018 at 00:23 Ludovic Courtès writes:

> I believe this is fixed by commit
> b34ac8248205d64b4023412e61512dfefe44cb9e.

Yes thank you. That fixed it here too. - George

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