Keeping SSH connections open

From: Augustus SFX van Dusen (ASFXvD_at_story.net)
Date: 06/15/05 

Date: Wed, 15 Jun 2005 16:43:20 GMT

        I am ssh'ing into a Linux box A from another Linux box B. B is a
box that has to be suspended to disk every so often, most of the time
while an ssh session to A is in place. What I would like to be able to do
is to resume such session after B is brought back up from its suspended
state.

        More specifically: Just before suspending B, in my desktop I have an
xterm running an ssh session to A. What I would like is for that xterm to
be there, waiting to accept further commands, when B is running again.
Currently, when B resumes the xterm is there, but the ssh connection is
not any more.

        I had a look into the sshd documentation, and I thought that by setting
the following values in A's sshd configuration file, I could achieve my
goals:

        KeepAlive no
        ClientAliveInterval 60
        ClientAliveCountMax 600

My interpretation was that, with this, my ssh client on B could be
unresponsive (dormant) for up to 10 hours, before the ssh server on A
would close the connection. However, that did not apply to the suspend
scenario I describe, like I said.

        Can anybody suggest how to pull this one off? Is it even possible?

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