Thread:Project:Support desk/Wikifarm question.

I am interested in using mediawiki for a multiple department company database. However. Each department needs their own private wiki. After research, it seems like a wikifarm would work in this scenario. However, I have a few questions.

Is it possible to have users log in on one main page which will redirect them to their respective wiki? Can each wiki have it's own wiki have it's own admin who can add users separate from other wikis?

Essentially, I want all wikis to operate as separate entities, but with one central login page. Separate administrators for each site and one super administrator for updates, extensions, and maintenance.

Is this possible? And how would I approach this solution?