[ Thanks to Falko
Timme for this link. ]
“Administrators have to add security to VNC by
tunneling it through an encrpyted channel such as SSH and adding a
layer of authentication. In this article, we will show you how to
combine the NoMachine NX server to encrypt VNC and remote X session
combined with two-factor authentication from WiKID Systems to
create a secure, fast remote access solution.”