One of the great new features available in the Team Foundation Server Service Pack 1 Beta is the new support for both Basic and Digest authentication, all compliments of a new ISAPI filter that enables this. This was one of the features I was most looking forward to as it now allows external users to access your TFS server using Basic/Digest Auth over SSL without the need for a VPN connection.

If this is something of interest to you, check out the two new walkthroughs on the VSTS Education blog.

Walkthrough: Setting up Team Foundation Server with Secure Sockets Layer (SSL) and an ISAPI Filter

Walkthrough: Setting up Team Foundation Server to Require HTTPS and Secure Sockets Layer (SSL)