Automatically logout inactive SSH sessions :

 

 Automatically logout inactive SSH sessions : 

 

             Typically in an Enterprise setup, we would see Users login from various terminals via SSH but never bother to disconnect the established session. This might cause a slight overload on the Network, since these Established sessions have to maintain their connections by sending Alive packets. So I guess it would be appropriate if make these Users automatically Logout after a certain period of Inactivity (say 1 hour).

Solution 1:

Create a file called "autologout.sh" under /etc/profile.d with execute permission.

# touch /etc/profile.d/autologout.sh

# chmod 711 /etc/profile.d/autologout.sh

Add the following entries to it (Assuming we have to automatically Logout the users after 1 hour, which is 3600 seconds).

TMOUT=3600

readonly TMOUT

export TMOUT

Solution 2:

Enable the following directives in SSH config file (/etc/ssh/sshd_config) and reload the 'sshd' service.

ClientAliveInterval 3600

ClientAliveCountMax 0

#service sshd reload  (or) #service sshd restart