FreeNX or VNC, which is generally more secure? I am just wondering since both give encryption.
I know FreeNX generally uses SSH which is very secure.
If you're talking about straight out of the box VNC, it does not provide any encryption (UltraVNC does however, and RealVNC does to, for the commercial package).
FreeNX is used over ssh
so, it's secure by default I'd say, but you can also tunnel VNC through ssh.