SSH Timeouts

[Jason Clinton]

Jonathan Hutchins wrote:
> I'm looking for other people who are having trouble maintaining idle SSH 
> sessions.

As a Linux company with clients all over the geographic North America, 
we do a lot of SSH'ing. I'll risk sticking my networking foot in my 
mouth and say that I've found that certain network hops close idle TCP 
connections after a variable amount of time. By default, sshd does send 
TCPKeepAlive requests at regular intervals but it's possible that these 
are being ignored / discarded. The solution is to enable 
ClientKeepAliveInterval in your /etc/ssh/sshd_config on all the servers 
you connect to. I've found that a setting of 5 has worked everywhere.

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