I got User LDAP authentication working. Anyone who could authenticate to my directory could login. However, I need to restrict it so I created a group in the directory: dn: cn=otrs,dc=mydomain,dc=org objectClass: posixGroup gidNumber: 523 cn: otrs description: People in Support Services, etc., who can use OTRS memberUid: jo memberUid: don memberUid: sam Then I modified the Kernel/Config.pm file and added: $Self->{'AuthModule::LDAP::GroupDN'} = 'cn=otrs,dc=mydomain,dc=org'; $Self->{'AuthModule::LDAP::AccessAttr'} = 'memberUid'; Then, jo, don, and sam along with everyone else were no longer able to log in. The error in the log is: User: jo login failed, no LDAP group entry foundGroupDN='cn=otrs,dc=mydomain,dc=org', Filter='(memberUid=uid=jo,dc=mydomain,dc=org)'! (REMOTE_ADDR: 172.16.9.159). What setting should I use to require membership in my group? Thanks, Jason Joines =============