LDAP authentication + replication

Hi list I configured my 2 tests server to replicate with syncrepl using this website: https://help.ubuntu.com/9.04/serverguide/C/openldap-server.html It works well. If I create a new user on any servers it's immediately replicated to the other. However I have some error in the log files: (these 2 messages appears every 10 seconds on the first server (vmlinux01)) Sep 22 11:53:56 vmlinux01 slapd[12072]: <= bdb_equality_candidates: (entryCSN) not indexed Sep 22 11:53:56 vmlinux01 slapd[12072]: <= bdb_inequality_candidates: (entryCSN) not indexed Sep 22 11:24:51 vmlinux02 slapd[10596]: do_syncrep2: rid=001 (-1) Can't contact LDAP server Sep 22 11:24:51 vmlinux02 slapd[10596]: do_syncrepl: rid=001 retrying (4 retries left) Also, when I configure the server to authenticate using LDAP (pam-auth-update) I can connect to the system using an LDAP account (say maxime) but look at the prompt and whoami result : administrator@vmlinux01:~$ whoami administrator Do I need to create the users on both LDAP and Linux ? Max