how to change session timeouts

[linuxteer]

Hi all,

I use putty to connect with ssh to a linux server (redhat 8.0). If I remain idle for more than 5 mins then the seesion is timed out. How can I change the default timeouts on redhat 8.0? Can I do that from one of the files in /proc ? or do I have have to recompile the kernel?
Much appreciated if someone could shed some light on this.

Ash

 

[ZaSter]

Might try the following:

cat /proc/sys/net/ipv4/tcp_keepalive_time

If that file exists, it probably has the value "300" which is 300 seconds which is 5 minutes. If this is the case, you could change that value to something like 2 hours (7200 seconds) by:

echo 7200 > /proc/sys/net/ipv4/tcp_keepalive_time

Then edit the /etc/ssh/sshd_config to make sure the "KeepAlive" is set to "yes"; if not change it, save the changes, and restart sshd.

 

[Morsing]

Or look for the shell variable TMOUT.

Cheers

Henrik Morsing
Certified AIX 4.3 Systems Administration
& p690 Technical Support