when installing all plugins i got error message about samba sid-rid
when installing all plugin except mixed groups, it got this error in the ldap inspection phase
sambaSID and/or sambaRidBase missing in the configuration!
its because there is no samba server configured in my ldap in this case we should fill it with basic values
(from redmine: issue id 4007, created on 2015-08-13, closed on 2015-08-19)