How to change SSH port number
If you want to change your ssh port number other then 22 you can do it by editing sshd_config.
Step 1 : Login to your server as Root
Step 2 : edit it nano /etc/ssh/sshd_config
Step 3 : Search for following line that has :
Port 22
Step 4 : Change the port number as you want.
Note : Make sure port is not being use by another service.
Step 5 : Save the file
Step 6 : Restart sshd using the following command : /etc/init.d/sshd restart
Step 7 : open the same port on firewall as you changed in config file /etc/ssh/sshd_config .