Solaris 10 ssh auto logout

Question

For some reason, I am getting automatically logged out of one of my shells on one Solaris box but not on the other one. I don't seem to have any bash variables set to auto logout. What else should I check?

Answer 1

the auto logout is happening due to the IdleTimeout variable is set in /etc/ssh/sshd_config

I believe if you have KeepAlive set in your .ssh/config then it should stop (I haven't tested this though, so ymmv).

Answer 2

I assume you checked for the TMOUT variable in your bash session, correct?

Is there a firewall between your ssh client and the Solaris server in question? It might be dropping you after some amount of inactivity. If so, you could modify the sshd_config on the server and add the KeepAlive and ClientAliveInterval settings.

Answer 3

I've found that Cisco devices in their default configuration can cause this. Do you have different Cisco devices between you and each server?

Answer 4

Try setting ServerAliveInterval 600 in /etc/ssh/ssh_config on your client machine.

Answer 5

Check the /etc/default/login (TIMEOUT) and /etc/profile (TMOUT) files.

They have timeout settings for the login shell.