How to disconnect specific ssh client from ssh server in linux?

I wonder if i can disconnect a specific ssh client from ssh server?

Can we do that?

Thanks in advance...

1 Answer

This is answered here:

A copy of the steps:

There's probably an easier way, but I do this:

1. See who's logged into your machine -- use who or w:

    > who mmrozek tty1 Aug 17 10:03 mmrozek pts/3 Aug 17 10:09 (:pts/2:S.0)

2. Look up the process ID of the shell their TTY is connected to:

    > ps t PID TTY STAT TIME COMMAND 30737 pts/3 Ss 0:00 zsh

3. Laugh at their impending disconnection (this step is optional, but encouraged)

    > echo "HAHAHAHAHAHAHAHA" | write mmrozek pts/3

4. Kill the corresponding process:

    > kill -9 30737

I just discovered you can combine steps 1 and 2 by giving who the -u flag; the PID is the number off to the right:

> who -u
mmrozek tty1 Aug 17 10:03 09:01 9250
mmrozek pts/18 Aug 17 10:09 01:46 19467 (:pts/2:S.0)