Hi Stephan -
Tableau is compatible with Open Directory via Tableau's "Trusted Authentication" mechanism. Microsoft's Active Directory is the only LDAP-based service which "just works out of the box".
In essence, Tableau's Trusted Authentication acts as a "bridge" between any arbitrary authentication store and Tableau Server. You'll need to write a few lines of code which essentially:
- Returns the Open Directory user who you want to authenticate against Tableau
- Passes that user name to Tableau
- Works with a "ticket" that Tableau returns to your code. This ticket acts as an authentication token.
Please search our knowledge base for the phrases "Trusted Tickets" or "Trusted Authentication" if you'd like a deeper dive into this functionality.