This page needs wiki gardening. It needs more than gardening; 98 percent of information here is outdated and invalid now. Using the ActiveLDAP library, it’s relatively easy to set up your Rails app to authenticate via LDAP. Of course, you’ll need to have ActiveLDAP installed on your system, which you can get via RubyGems: gem install ruby-activeldap ActiveLDAP requires the Ruby-LDAP extension lib