How to log off an user from SSH?

Question

I am able to see logged-in users via the who or last command.

How can I log off a particular user who login through SSH?

Answer 1

kill its ssh session. Check them by

ps aux | egrep "sshd: [a-zA-Z]+@"

Second column gives you the PID. Then,

sudo kill [-9] PID

Hope this helps.

ps: using the -9 flag will prevent things from stopping "graciously".

Answer 2

I found this guys. Just replace USERNAME with the desired user session to be killed.

 kill [-9] $(ps aux | grep USERNAME@ | head  -n 1 | tr -s ' ' | cut -f 2 -d ' ')

As mentioned above, using the -9 flag will prevent things from stopping "graciously".