We have a SharePoint 2003 server in a multi-domain forest, and admins would like users to be able to log in without specifying their domain when coming in over the WAN. We have SSO working, so on the LAN this is not an issue. This apparently was a feature available in IIS4/5 with Basic Authentication, by hard-coding "\" as the default domain in the metabase. Well, now we are talking IIS 6 with Integrated Windows Authentication, and I do not see yet how this could be done. Basic Authentication is not an option. Since UPNs are unique in the forest, they reason, there shouldn't be a need to specify domain. This makes sense, but again does not appear so far to be a feature
So, to wrap the question a little tighter, is there a way users can log into WSS 2003 as Username or Username@forest.com, without specifying their child domain?