[j-nsp] management daemon of M20(9.4R4.5) is not running

[Martin T]

Cold reboot of the router helped :)


regards,
martin


2011/8/10 Martin T <m4rtntns at gmail.com>:
> I have a Juniper M20 with Junos 9.4R4.5, which all of the sudden
> doesn't support SSH login:
>
>
> martint at martin:~> ssh 192.168.1.254
>
> Enter passphrase for key '/home/martin/.ssh/id_dsa':
> --- JUNOS 9.4R4.5 built 2009-11-16 16:23:14 UTC
> could not open user interface connection: management daemon not running
> Retry connection attempts ? [yes,no] (yes)
> could not open user interface connection: management daemon not running
> Retry connection attempts ? [yes,no] (yes)
> could not open user interface connection: management daemon not running
> Retry connection attempts ? [yes,no] (yes)
> could not open user interface connection: management daemon not running
> Retry connection attempts ? [yes,no] (yes)
> could not open user interface connection: management daemon not running
> Retry connection attempts ? [yes,no] (yes) no
> Connection to 192.168.1.254 closed.
> martint at martin:~>
>
>
> Over console line I can see, that mgd is actually running:
>
> root    1169  0.0  1.0 28948 21668  ??  I    25Feb11   0:54.90 /usr/sbin/mgd -N
>
>
> I tried to execute another instance of mgd with "/usr/sbin/mgd -N",
> but this resulted with:
>
> "mgd: error: daemon MGD detects existing daemon using lock file"
>
> As it turned out, mgd uses lock file in order to ensure, that only one
> instance of mgd is running at any specific time. Then I tried to force
> mgd to reload gently using "kill -HUP 1169", but it looks like mgd
> ignores the hang up signal. Then I sent SIGTERM with "kill 1169",
> which caused mgd to restart:
>
> root 79861  3.1  1.0 24824 21124  ??  S    10:26PM   0:00.39 /usr/sbin/mgd -N
>
> ..but there is still no access to the router over SSH. However, now I
> don't get the "could not open user interface connection" error.
> Instead the SSH session just hangs there forever.
>
> Any ideas, how to regain access to this machine over SSH? Or is the
> reboot only option out there in such case?
>
>
> regards,
> martin
>