I've setup LDAP to use AD for agent authentication, my configuration is: Otrs Server: Debian lenny AD: Windows 2000 Server: 172.27.110.123 Domain: mycompnay.com AD User group= OtrsAgent User in group: my name pass:12345678 User "my name" has adminsitrative privileges in windows AD. I put this in the Config.pm file: # ---------------------------------------------------- # # insert your own config settings "here" # # config settings taken from Kernel/Config/Defaults.pm # # ---------------------------------------------------- # # Agent Authentication $Self->{'AuthModule'} = 'Kernel::System::Auth::LDAP'; $Self->{'AuthModule::LDAP::Host'} = '172.27.110.123'; $Self->{'AuthModule::LDAP::BaseDN'} = 'dc=mycompany, dc=com'; $Self->{'AuthModule::LDAP::UID'} = 'sAMAccountName'; $Self->{'AuthModule::LDAP::SearchUserDN'} = 'cn=my name,ou=OtrsAgent,dc=mycompany,dc=com'; $Self->{'AuthModule::LDAP::SearchUserPw'} = '12345678'; $Self->{'AuthModule::LDAP::GroupDN'} = 'cn=OtrsAgent,dc=mycompany,dc=com'; $Self->{'AuthModule::LDAP::AccessAttr'} = 'member'; $Self->{'AuthModule::LDAP::UserAttr'} = 'DN'; # ---------------------------------------------------- # First login using DB, I set up a group in Otrs admin with the name OtrsAgent, a usr "my name" with pass=12345678, then I changed the config.pmfor LDAP. The login form changes, but if I put a user from OtrsAgent group I get: Login failed! Your username or password was entered incorrectly So my questions are: 1.- what's wrong in the Config.pm? 2.- How can I login to otrs? I'tried to login with Otrs or AD users, but is not possible. 3.- How can I check if LDAP client is running OK? Any help is wellcome, I've digg the internet and manual, but I still cant find the aswers. Saludos Alfredo