dn: cn=module,cn=config
changetype: add
objectClass: olcModuleList
cn: module
olcModulePath: /usr/lib64/openldap/
olcModuleLoad: unique.la

dn: olcOverlay=unique,olcDatabase={2}mdb,cn=config
changetype: add
objectClass: olcOverlayConfig
objectClass: olcUniqueConfig
olcUniqueURI: ldap:///?uidnumber?sub
olcUniqueURI: ldap:///?gidnumber?sub