Re: ssh reverse tunnel
- From: "Christopher K. Johnson" <ckjohnson@xxxxxxx>
- Date: Mon, 30 Jun 2008 13:51:55 -0400
Rick Bilonick wrote:
This works fine. The only problem is the connection always times outSome firewalls have a time limit on connections, and the connections will fail as soon as that timeout occurs. Note when the ssh session is started, and when it times out. See if there is a consistent connection duration.
even though I've changed the sshd_config files on both machines to keep
it alive. I've restarted the sshd daemon also. Not sure why the
connection keeps closing.
If that is occuring the only solutions are to alter the timeout on the firewall (I did that on some checkpoint firewalls a few years ago) or re-initiate the connection whenever it goes down (yum install autossh). Obviously the latter is not ideal because your inbound session is lost uncleanly and you cannot predict when it will happen unless you know what the firewall connection timeout is for that port, and when the session was initiated. But if it means that getting a connection remains possible that would be better than losing the capability until you are next in the office.
Chris
--
"Spend less! Do more! Go Open Source..." -- Dirigo.net
Chris Johnson, RHCE #804005699817957
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- From: Rick Bilonick
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