I've got a mixed environment with both AD users as well as FBA users. The FBA users are stored in a seperate ASP.NET membership database.
Now when I use search, both AD and FBA users show up. I'd like to limit those results to always only show AD users, the FBA users should be entirely excluded from search. Is there a way to tell the search engine not to index these folks?
I'm not importing any of the FBA users in profile import, since there is no import for non-AD users (as far as I know). Also, setting up crawl rules won't work because they only go for URL's and I have no clue what I would have to enter there to get it to ignore FBA users.
I did try limiting the people scope by adding an exclusion. But that requires a metadata property to check and I have no suitable property to use. The AccountName property contains the claims prefix (i:0#.w or i:0#.f) to indicate forms or Windows, but the scope rules only allow for an equals check, not for a contains or anykind of wildcard characters I believe?