Is there a good docbook for Mediawiki + NTLM Auth
setup?
See some web server authentication extensions such as:
http://www.mediawiki.org/wiki/Extension:AutomaticREMOTE_USER
http://www.mediawiki.org/wiki/Extension:HttpAuth
Then, configure your webserver to accept kerberos authentication using
mod_auth_kerb. See:
http://modauthkerb.sourceforge.net/configure.html
http://grolmsnet.de/kerbtut/ (active directory specific)