I have recently configured an old PC of mine to run Ubuntu 12.04 Server to be used as an FTP Client. However, I want to find out how I can access it from a Remote Desktop (I.e: Not on the Wireless Network at Home).
When you ssh daemon is already running you can estimate by the following command on which interface
As you can see my ssh daemon is listening on
If your computer is behind a firewall you need to forward the port (default: 22) to your computer. But I recommend to use another port than 22, because most bots out there are trying to brute force login via ssh over port 22 as you will see in