With a Linux Server, you access the server via SSH. In order to do this you will need an SSH Client, of which we recommend PUTTY, your IP address and your user credentials.
Once connected, you will administer your Linux system from the Command Line Interface.
With Windows, you use Remote Desktop Connection that comes with Windows XP or Vista. This can be found in your Start Menu in Accessories. (Windows XP is under Communications in Accessories). Again, you will need your IP address and user credentials to log in.