asked on

SSH disconnects after a certain time.

When I start a ssh session with one of my server, if I am not active for 60 sec it automatically time out.

1. Where is configure?
2. How do I stop it form timing out.

Thanks

Tintin

A few possibilities.

1. There is a firewall dropping connections idle for >=1 min. In which case, you either need to use a client keepalive (putty has this option), or possibly TCP keepalives on the server side.

2. Your shell (ksh/bash) has the TMOUT environment variable set to 60, which causes your login session to log out if you are idle for more than 60 seconds *and* you are at the shell prompt.

Tintin

3. Related to 1, there's the KeepAlive option in /etc/sshd/sshd_config

simpsonjr

ASKER

There is a KeepAlive setting in the sshd_config.

It currently is set:

KeepAlive yes

It is set to yes on server that are not booting me out as well..

Tintin

What about points 1 and 2?

simpsonjr

ASKER

There is no firewall dropping the connection.

and

#Your shell (ksh/bash) has the TMOUT environment variable set to 60, which causes your login session to #log out if you are idle for more than 60 seconds *and* you are at the shell prompt

I don't even know how to check this.

Tintin

From the shell prompt, type

echo $TMOUT

simpsonjr

ASKER

I get nothing when I run that command.

Here is another twist in the puzzle. When I ssh from another Solaris server, I don't get booted. But every client I use does.

The clients I am using are Putty and the terminal in OSX.

ASKER CERTIFIED SOLUTION

Tintin

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

simpsonjr

ASKER

That worked for Putty. What about my OSX Terminal?

Tintin

Not familiar with OSX terminal.