Good day, I would like to host several projects on several domains with only one installation of mediawiki and one database.

Questions: 1) Can this be done with one installation of mediawiki? 2) Do I have to install one mediawiki for each domain? 3) Can I use a different layout for each project? 4) domain 1 should display only articles of catageory 1, domain 2 of category 2 etc. Is this possible? 5) Is it possible to have "shared" content too: domain 1 displays only catgeory 1, but domain 2 displays articles of categories 1 AND 2?

Thank you Smo