I am banging my head against the wall with LDAP authentication. I have tried everything! I now have access to a server, "ldap.test.com" and know the ou=People, and can use tools like Softerra LDAP Browser to confirm all this (via anonymous access). What am I doing wrong? All the documentation reflects an AD environment, is this my problem? Should the line: $Self->{'AuthModule::LDAP::UID'} = 'sAMAccountName'; <--- and related lines be something different for OpenLDAP? I have tried leaving the login info blank, commented out, left in, etc. I have tried the line: $Self->{'AuthModule::LDAP::Host'} = 'ldap.test.com'; <--- with and without port number. I have tried the line: $Self->{'AuthModule::LDAP::BaseDN'} = 'o=test.com'; <--- Ive also tried it with the ou=People added in, I don't see anything for a dc=, but ive tried all kinds of variants. I am now getting NO errors in apache error_log, no otrs errors, etc. When I try to access the website at /otrs/index.pl it appears to be working (the reset password option is gone) but nothing works. My local DB accounts no longer work (as expected) but NOTHING works! I have a user named adnielson already in OTRS with the same password as on LDAP, not working. All I get in the login prompt (should it auto log me in??) and when I try anything for a username/password, it just tells me its incorrect. I have followed peoples guides, the official doc, googled everything, etc. All I find is how to set it up to work with an AD forest, and following that only renders the above results. ANY help that someone can provide me would be greatly appreciated. I am at a loss on what it could be or what is going wrong! P.S. - I am running on RHEL 5, I installed net:ldap for perl, used an RPM I found online, and even updated the package via redhats update tool.