Posted: May 14th, 2016
Follow this procedure to change your SSH port:
> Login to your server with SSH as root.
> Edit the file /etc/ssh/sshd_config using your favourite text editor.
> Find the line "Port 22" and change 22 to the desired port number (The default ssh port is 22).
> Remove the "#" sign at the beginning of the line (if exist).
The part of the file will look like this:
Port 22
> Save the file and exit.
> Restart the sshd service:
CentOS
/etc/init.sshd restart
Debian
/etc/init.ssh restart
Freebsd
/etc/rc.d/sshd stop ; /etc/rc.dsshd start