[Samba] Force set group id on samba domain member

[Rowland Penny]

On Tue, 24 Jul 2018 15:57:46 +0200
Michal <Michal67M at seznam.cz> wrote:

> For being honest, in my previous tests this user's (user test1) new
> files was created with NIS\audio group as extected; but other user's
> files (user amistest) was created with "NIS\domain users" group (in
> the same "audio" directory). This lasted a few days.
> 
> It looked like
> drwxr-sr-x  2 NIS\amistest NIS\audio        4096 Jul 24 08:17
> amistestdir drwxrwsr-x+ 2 NIS\amistest NIS\domain users 4096 Jul 24
> 11:48 amistestdir2       -> why NOT NIS\audio group?
> -rw-r--r--  1 NIS\amistest NIS\audio           0 Jul 24 08:17
> amistestfile -rwxrwxr-x+ 1 NIS\amistest NIS\domain users    7 Jul 24
> 11:49 amistestfile2      -> why NOT NIS\audio group?
> drwxr-sr-x  2 NIS\test1    NIS\audio        4096 Jul 24 08:15 test1dir
> -rw-r--r--  1 NIS\test1    NIS\audio           0 Jul 24 08:16
> test1file
> 
> But during writing my initial post about this topic, files of both
> these users started to have "NIS\domain users" group. I am not aware
> of change which could be the reason.
> 

Do the users have a gidNumber attribute containing the gidNumber of the
required group and if so, is the gidNumber inside the range set in
smb.conf and is the version of Samba >= 4.6.0

Rowland