The default port of SSH is 22. To secure SSH more we need to change the port . This blog helps you how to change default SSH port on Ubuntu servers.
1. Switch as root user
$sudo su –
[sudo] password for user:
2. Open ssh configuration file
#vim /etc/ssh/sshd_config
3. Change the line (Here changed the port to 5011).
from
Port 22
to
Port 5011
4. Restart SSH service
#/etc/init.d/ssh restart
After changing the default port you should specify the port while connect to remote system using SSH client
#ssh user@linvux4you.in -p 5011
Note : Before selecting the port please make sure that port is not using by any other services. You can verify this on /etc/services file.
Done !!!