RT::Authen::ExternalAuth  RT Authentication using External Sources

A complete package for adding external authentication mechanisms to
RT. It currently supports LDAP via Net::LDAP and External Database
authentication for any database with an installed DBI driver.

It also allows for authenticating cookie information against an
external database through the use of the RT-Authen-CookieAuth
extension.

WWW: http://search.cpan.org/perldoc?RT::Authen::ExternalAuth