Automatically logout inactive SSH users
Automatically logout inactive SSH users
Working in IT has taught me to lock my screen on my PC, Laptop or any other device. This habit has become a second nature that even at home I lock my systems. A few systems I consider to have production style services, I configured them to automatically log out when I forget to do so. I will describe here in this article how I configured this.
In this approach, we will only making the SSH session users to log out after a particular period of inactivity.
Edit /etc/ssh/sshd_config file:
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$ sudo vi /etc/ssh/sshd_config
Add/modify the following lines:
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ClientAliveInterval 1800
ClientAliveCountMax 0
Press ESC key and type :wq to save and close this file. Restart sshd service to take effect the changes.
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$ sudo systemctl restart sshd
Now, ssh to this system from a remote system. After 100 seconds, the ssh session will be automatically closed and you will see the following message:
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$ Connection to 192.168.122.181 closed by remote host.
Connection to 192.168.122.181 closed.
From now on, whoever access this system from a remote system via SSH will automatically be logged out after an inactivity of 1800 seconds, or 30 minutes.
Source and Credits: Auto Logout Inactive Users After A Period Of Time In Linux - OSTechNix