Authentication

[...]
    # ----------------------------------------------------#
    # authentication settings                             #
    # (enable what you need, auth against otrs db or      #
    # against a LDAP directory)                           #
    # ----------------------------------------------------#

    # This is the auth. module againt the otrs db
    $Self->{'AuthModule'} = 'Kernel::System::Auth::DB';

    # This is an example configuration for an LDAP auth. backend.
    # (take care that Net::LDAP is installed!)
#    $Self->{'AuthModule'} = 'Kernel::System::Auth::LDAP';
#    $Self->{'AuthModule::LDAP::Host'} = 'ldap.example.com';
#    $Self->{'AuthModule::LDAP::BaseDN'} = 'dc=example,dc=com';
#    $Self->{'AuthModule::LDAP::UID'} = 'uid';
    # The following is valid but would only be necessary if the
    # anonymous user do NOT have permission to read from the LDAP tree 
#    $Self->{'AuthModule::LDAP::SearchUserDN'} = '';
#    $Self->{'AuthModule::LDAP::SearchUserPw'} = '';
[...]