Can someone tell me if mediawiki permits you to use an alternative authentication scheme?
I would like to base wiki membership and roles for users and groups on membership information already contained in our intranet portal.
Is this possible?
If this is an army site, you may wish to use SSO. See:
http://www.mediawiki.org/wiki/Extension:Siteminder_Authentication
The siteminder plugin may need some work. I'd fix it, but I don't have a siteminder server to test against. If you need this fixed, you may be able to request my assistance via official channels (as I work for a Navy command).
If you don't wish to use SSO, or can't, I recommend the LDAP plugin:
http://www.mediawiki.org/wiki/Extension:LDAP_Authentication
If you need any help, don't hesitate to ask. If you need involved help, official channels will likely help.
V/r,
Ryan Lane