SSH keeps hanging up...

Kimball Larsen kimball at
Wed May 21 23:07:13 MDT 2008

I occasionally have to remotely admin a server at the office from home.

I have it set up to only allow a few hosts access via ssh, and my home  
static IP is on the permitted list. (using hosts.allow, hosts.deny)

I can connect to and log into the server just fine.  The session works  
great as long as I am actively doing something in the shell.  However,  
if I let it sit idle for (it seems) < 1 minute, the session seems to  
just lock up.

There is no indication that I've been bumped off the server - nothing  
changes in the window.

But no new keystrokes are registered, and the only way I can exit out  
of the shell is to close the terminal window.

Where should I be looking to find the cause of this behavior?  How can  
I diagnose what is going on here?

A cursory review of /etc/ssh/sshd_config revealed nothing enlightening.


- Kimball

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