RE: Dead SSH Connections from script

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To: "'General Red Hat Linux discussion list'" <redhat-list@redhat.com>
Date: Tue, 20 Jul 2004 10:48:34 +0100

> -----Original Message-----
> From: redhat-list-bounces@redhat.com
> [mailto:redhat-list-bounces@redhat.com] On Behalf Of Pete Nesbitt
> Sent: 20 July 2004 02:26
> To: General Red Hat Linux discussion list
> Subject: Re: Dead SSH Connections from script
>
> On July 19, 2004 09:26 am, Richard Hobbs wrote:
> > Hello,
> >
> > This script is causing problems... for some reason it keeps leaving
> > dead SSH connections around, which actually caused the
> server to run
> > out of file handles, reporting (too many open files).
> >
> > Is there something wrong with the script??
> >
> > Thanks in advance to anyone who can help, here's the script:
> >
> >
> ======================================================================
> > #!/bin/csh -f
> >
> > set NPARAMS = 1
> > if ($#argv != $NPARAMS) then
> > echo "Usage: $0 <list of automount hosts>"
> > exit 1
> > endif
> > set HOSTLIST = $1
> > shift
> > set P1 = $1
> > set P2 = $2
> >
> > set FILENAME=/project2/remote/automountresults`date
> > "+%Y%m%d%H%M%S"`.txt echo Automount auto.rmt results > $FILENAME
> > foreach host (`cat $HOSTLIST`)
> > echo $host
> > echo $host >> $FILENAME
> > /usr/bin/scp /project2/remote/auto.rmt $host":/tmp/"
> > /usr/bin/scp /project2/remote/automountconfig $host":/tmp/"
> > /usr/bin/ssh root@$host /tmp/automountconfig >>
> $FILENAME end
> >
> ======================================================================
> >
> > Thanks,
> > Hobbs.
>
> Hi,
> I am not too familiar with csh, but it appears to be fine.
> Are you using a key based authentication that works for the
> user that the script runs under? You could test by trying the
> scp line from the command line.
> How is roots password provided (or is it key?) Is root
> allowed to access the remote systems via ssh?

Yes, we are using key-based authentication, so no password is needed for
root on one machine to access all other machines thru SSH as root.
Basically, we have told all the client machines that our server is an
authorized host, and therefore (if root) not to prompt for a password.

As for scp on the command line, I haven't tested that yet, but will do soon
if I have time...

Thanks for your help so far :D

Hobbs.

-- 
Richard Hobbs (Systems Administrator)
Toshiba Research Europe Ltd. - Speech Technology Group
Web: http://www.toshiba-europe.com/research/
Email: richard.hobbs@crl.toshiba.co.uk
Tel: +44 1223 376940        Mobile: +44 7811 803377
http://unixforum.co.uk  http://hififorum.co.uk 
> --
> Pete Nesbitt, rhce
> 
> 
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• Previous message: Roger Aas: "Re: New squirrelmail breaks the nb_NO locale"
• In reply to: Pete Nesbitt: "Re: Dead SSH Connections from script"
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