Hi, https://help.ubuntu.com/13.10/serverguide/openldap-server.html#openldap-s... I'm following the instructions on the following webpage, with the following sections skipped. - Modifying the slapd Configuration Database - Logging - Replication - Access Control - TLS - Replication and TLS Then I get the following errors when I try the following commands. I'm know that I might make simple mistakes but I have no clue how to figure it out. Could you help me on how to make the command work? Thanks. pengy@lithium:/etc/ldap/schema$ sudo ldapadduser george example Cannot resolve group example to gid : not found -- Regards, Peng