you are not following what I am looking for. this is not a server that will be controlled by me. This is an application that has an AD groups table. The admin of the app can create groups and put AD groups into the App group. ie
SuperAppGroup
Domain\SillyEndUsers
Domain\SkilledEndUsers
The Domain\SillyEndUsers is what I do not know how to store. I have to store that no matter what for when they log into the app. AD I think stores a guid for the name. So I think I should use that incase the name ever changes. Will the SQL datatype uniqueidentifier work for that?
Here is a link that says they are stored as guids.
website