[CoLoCo] ssh timeout issue

[siblog]

I will give TCPKeepAlive a try

Well I am currently just trying to test this by manually sshing (via putty)
into the linux box via the unix box and leaving an idle open connection. I
get the broken connection error about 1.5 hours into it. I don't have the
actual error on hand right now but I am running a test with the TCPKeepAlive
so I will either post the error or post that it worked in a couple of hours.
Thanks!

-Simon

On Mon, Aug 4, 2008 at 10:05 AM, Mitch Mahan <mitch at kci.net> wrote:

> TCPKeepAlive yes should fix this problem, I wouldn't recommend messing
> with any of the timers...
>
> Where exactly are you getting this error? Could you paste it?
>
> - Mitch
>
> On Mon, 2008-08-04 at 09:18 -0600, Michael Robbert wrote:
> > Can you keep an interactive session open for longer than 2 hours? The
> > firewall may be cutting off all connections at a given time, that is
> > pretty restrictive, but possible. The first thought though, and it
> > looks like you've already thought of it, is that the connection is
> > getting dropped due to inactivity. I haven't played much with the keep
> > alive option in SSH so I'll leave that to somebody else to answer, but
> > my question would be if there is no traffic over the connection then
> > does it really need to stay open. Can you start up the process on the
> > Linux box and let it run in the background? If it is producing data
> > you can write that to disk and retrieve it later.
> > Just a thought for a work around.
> >
> > Good Luck,
> > Mike Robbert
> >
> > On Mon, Aug 4, 2008 at 8:45 AM, siblog <tehsiblog at gmail.com> wrote:
> >         I have been wrestling with a ssh timeout issue and can't seem
> >         to find an answer that is working for me. Some important
> >         details are.....The connection is between a HP-UX Unix server
> >         and a Ubuntu Linux server. The Unix server is behind a
> >         firewall and the Linux server is outside of the firewall. I
> >         can't alter the /etc/ssh/sshd_config files on either server
> >         but do have .ssh/config files that I have been playing within
> >         the users directory on both servers.
> >
> >         As far as the process and issue....I basically have a script
> >         that is ssh'ing from the Unix server into the Linux server and
> >         kicking off another script that runs on the Linux server.
> >         Based on the volume of data the script is processing on the
> >         Linux server it sometimes takes up to three hours to run. At
> >         around the 1.5 - 2 hour mark the ssh connection fails with a
> >         timeout error. I have been trying many different things with
> >         the users .ssh/config file including adding "KeepAlive yes"
> >         entries as well as playing with "ClientAliveInterval",
> >         "ClientAliveCountMax", "ServerAliveInterval" and
> >         "ServerAliveCountMax". Does anyone know what I could be
> >         missing or what could be going wrong?
> >
> >         Thanks,
> >
> >         -Simon
> >
> >
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> >
>
>
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