Hi Paul, We have other Linux versions like Fedora 4, RedHat ES servers and they have no problem authenticating to the same iplanet LDAP server. I only encounter this in Fedora 5, I'm in the process of setting up another Fedora 5 this week, I'll configure ldap for this new server to see if it has the same problem as the current one. I shall update this post again once my new server is setup and post my findings Regards -- This is an email sent via the webforum on http://fcp.homelinux.org http://fcp.homelinux.org/modules/newbb/viewtopic.php?post_id=94216&topic_id=21829&forum=28#forumpost94216