dn: olcDatabase={1}hdb,cn=config
changetype: modify
add: olcSuffix
olcSuffix: dc=test,dc=local
-
add: olcRootDN
olcRootDN: cn=admin,dc=test,dc=local
-
add: olcRootPW
olcRootPW: {SSHA}SGq737yNactRCyMY70TDTQs6V1wzMRD6
-
add: olcSyncRepl
olcSyncRepl: rid=004 provider=ldap://ldap1.test.local binddn="cn=admin,dc=test,dc=local" bindmethod=simple
  credentials=test searchbase="dc=test,dc=local" type=refreshOnly
  interval=00:00:00:10 retry="5 5 300 5" timeout=1
olcSyncRepl: rid=005 provider=ldap://ldap2.test.local binddn="cn=admin,dc=test,dc=local" bindmethod=simple
  credentials=test searchbase="dc=test,dc=local" type=refreshOnly
  interval=00:00:00:10 retry="5 5 300 5" timeout=1
olcSyncRepl: rid=006 provider=ldap://ldap3.test.local binddn="cn=admin,dc=test,dc=local" bindmethod=simple
  credentials=test searchbase="dc=test,dc=local" type=refreshOnly
  interval=00:00:00:10 retry="5 5 300 5" timeout=1
-
add: olcMirrorMode
olcMirrorMode: TRUE

Source: linuxlasse.net :: OpenLDAP N-Way MultiMaster Replication