dn: olcOverlay=unique,olcDatabase={1}mdb,cn=config
objectClass: olcOverlayConfig
objectClass: olcUniqueConfig
olcOverlay: unique
olcUniqueUri: ldap:///ou=people,dc=ldap,dc=local?uid?sub
olcUniqueUri: ldap:///ou=people,dc=ldap,dc=local?mail?sub
olcUniqueUri: ldap:///ou=people,dc=ldap,dc=local?uidNumber?sub