I have an ArcGIS Enterprise + Portal environment where I would like to host content across two domains to two separate sets of users (domain1.com and domain2.com). I would like to find any documentation (case studies, architectures, best practices, etc) that would help me architect a solution that minimizes data redundancy and prioritizes security. Both systems are on Windows server using Active Directory (not Azure AD).
I would like to use Active Directory as the identity store.
Does this mean I need two environments for each domain or is there a recommended and tested way to support two domains on one cluster?