[Samba] R: R: group 'Domain User' has changed rid in a new server

Corrado Ravinetto corrado.ravinetto at lanificiocerruti.com
Mon Dec 19 15:55:06 UTC 2022

I changed my smb.conf with this parameter, but nothing change ☹

        idmap config * : range = 9000-17999
        idmap config lxcerruti : backend = ad
        idmap config lxcerruti : range = 500-8999
        idmap config lxcerruti : unix_nss_info = yes
        idmap config lxcerruti : unix primary_goup = yes
        idmap config * : backend = tdb

[root at dm ~]# getent group "LXCERRUTI\\Domain Users"
domain users:x:110513:

-----Messaggio originale-----
Da: samba <samba-bounces at lists.samba.org> Per conto di Rowland Penny via samba
Inviato: lunedì 19 dicembre 2022 16:10
A: samba at lists.samba.org
Cc: Rowland Penny <rpenny at samba.org>
Oggetto: Re: [Samba] R: group 'Domain User' has changed rid in a new server

On 19/12/2022 15:00, Corrado Ravinetto wrote:
> Rowland thanks a lot.
> This choice arrive from an old samba 3 installed many years ago, i think quite 20 years, then upgraded, upgraded and upgraded.
> The problem is not how to change rights on files but how can i change PrimaryGroupID on all users ??

There is no sane way of doing this.

You could use the 'ad' idmap backend and give every user a uidNumber attribute containing a unique number and Domain Users a gidNumber attribute containing '513'

Your idmap config line would have to be something like this:

idmap config DOMAIN : range = 500-9999999

I cannot recommend doing this, it removes the possibility of any local Unix users.

It will be a lot more work (and it will be ongoing) than changing the group ownership of the files through a script.


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Corrado Ravinetto
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