{mod_shared_roster_ldap,[
    {ldap_servers, ["aaa.bbb.ccc.ddd", "aaa.bbb.ccc.eee"]},
    {ldap_encrypt, tls},
    {ldap_port, 636},
    {ldap_base, "dc=ntp,dc=org"},
    {ldap_rfilter, "(objectClass=*)"},
    {ldap_filter, []},
    {ldap_gfilter, "(&(objectClass=posixGroup)(cn=%g))"},
    {ldap_ufilter, "(&(objectClass=posixAccount)(cn=%u))"},
    {ldap_groupattr, "cn"},
    {ldap_groupdesc, "description"},
    {ldap_memberattr, "memberUid"},
    {ldap_memberattr_format, "%u"},
    {ldap_useruid, "uid"},
    {ldap_userdesc, "displayName"}
  ]},