http://blogs.technet.com/tristank/archive/2007/03/02/i-want-to-publish-a-website-to-the-internet-how-do-i-enable-kerberos.aspxYa don't. You can't win. But there are alternatives to fighting. Why Not? Windows Kerberos doesn't work in an Internet scenario, it's intranet-only. the client machine must be a member of the same Active Directory forest as the target site. You just can'ten-AUCommunityServer 2.1 SP1 (Build: 61025.2)