Killing idle SSH sessions?

Brandon Laing blaing at vancoservices.com
Wed Jul 6 14:34:27 UTC 2005


Alex,

Adding ClientAliveInterval will only help if the client drops off 
entirely and the server can't get any response. If the session stays 
connected (say, in a Putty window) but the client doesn't do anything, 
the session stays active. I've tried and verified this on multiple 
systems. There doesn't seem to be a way built into the SSH daemon in 
Fedora to kill an idle session. SSH on other distros seems to support a 
different setting for the sshd_config file called IdleTimeout, which 
does what it sounds like; it kills a session after being idle for a set 
amount of time. This setting does not work on Fedora... ssh will not 
start if this line is added.

So, I guess I am just hoping that someone has addressed this issue with 
another program or script. Thanks for the help so far with this.


---------------------------------------------------------


Alex Evonosky wrote:

Add this to your /etc/sshd/sshd_config:


ClientAliveInterval n


n=number of seconds (0 default for unlimited)




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