RDP over SSL with Windows Server 2003 SP1
Release Candidate 2 for Windows Server 2003 SP1 is available to test from microsoft.com, which means RTM can't be that far away!A new feature in SP1 (at least, present in the RC2 build of SP1) that's been causing some confusion is RDP over SSL - a new option for Terminal Services that should provide server authentication for TS sessions, preventing MITM (man in the middle) attacks while providing a new option for encryption.
Up front - RDP over SSL is not a firewall traversal technology. It doesn't mean you're using Web protocols to do RDP. To rephrase, it's not "RDP over HTTP", it's "RDP with TLS authentication and encryption over TCP" - it still happens over TCP port 3389, as RDP usually does.(continue at source)








