Currently, I've no mean to use an openldap 2.3 unless exists an RPM update package for RHEL 4 (or CentOS). But the problem is that the request like "attribute=a_string=another_string,..." worked fine with openldap 2.0 but not with openldap 2.2. [..CUT..] [..CUT..] If you want some informations regarding the schema used, you will find here : http://glueschema.forge.cnaf.infn.it/Spec/V13 And you ca download the schema here : https://forge.cnaf.infn.it/plugins/scmsvn/viewcvs.php/v_1_3/mapping/ldap/... if you want to import some datas with slapadd, you could find here a reference ldiff file : ldap://cclcgtopbdii01.in2p3.fr:2170/ root : o=grid Regards. Pierre-Emmanuel -- Pierre-Emmanuel Brinette Grid computing - EGEE/LCG team IN2P3/CNRS Computing Centre - Lyon (France) 27 bd du 11 novembre, F-69622 Villeurbanne cedex pbrinette(a)cc.in2p3.fr - Tél. : +33 (0) 4 78 93 08 80