I have abc.com, edf.com, and xyz.com domain namespace. I would like to have each domain namespace to share the same login. I know that you can configure them into one forest, but can I configure these three domain namespaces into one forest and ONE SINGLE Domain Controller (System), or Do I need to have separate Domain Controller for each one? If I can configure the 3 separate domain namespace, please provide some information.
Sincerely, V.T.