You probably know that you can completely administrate a Unix/Linux machine by logging in to it via SSH. But what would you do if you needed to access a Windows machine? Right, use VNC, you say. That's fine, I admit. VNC is freely available (see below for software links), it's easy to play with and fast enough to be used even over a slow dial-up line. However, the VNC protocol is rather insecure. Although passwords are transmitted in encrypted form, the actual data is not. That might again be fine if you use it in your LAN only, but I for my part would definitely not use it over the Internet.
Commercial products exist to overcome the ...
