samba - Dec 2020 - Domain admins group missing from domain member

On 13/12/2020 02:09, Carlos Jesus via samba wrote:
> Hi all,
> I'm having a strange issue with one of my samba domains that I hope you
can
> help with.
> Simply put, getent group|grep "domain admins" returns (as
expected) domain
> admins:x:3000061:on both my DC's , but comes out empty on both linux
domain
> members.
Not sure why that worked, it shouldn't because you don't have
'winbind
enum groups = yes' in your DC's smb.conf

Also you are using the 'ad' backend on the Unix domain member and 
'3000061' isn't a gidNumber, it is an xidNumber and only used on
DC's.
This actually is a good thing, because if you do give Domain Admins a 
gidNumber, it just becomes a group and cannot own files and folders in 
sysvol.

Rowland

Sorry, my bad.
Those lines are in fact in smb.conf of both DC's and DM's. I removed
them
after test #3 to see if winbind was properly detecting things and forgot to
add them back.

So, with those lines back in (and after a smbcontrol all reload-config),
on a DM I get:
getent group|grep "domain users" gives domain users:x:10001: as
expected
getent group|grep "domain admins" comes out blank
On a DC
getent group|grep "domain users" gives SAMDOM\domain users:x:10001:
getent group|grep "domain admins" gives SAMDOM\domain
admins:x:3000061:

as for the gidNumber vs xidnumber, there are multiple discussions on the
mailing list about this and even the wiki advices against it (
https://wiki.samba.org/index.php/Sysvolreset for example) so I didn't use
the gidNumber for Domain Admins. Could this be the reason?

Best regards,

Carlos


Rowland penny via samba <samba at lists.samba.org> escreveu no dia
domingo,
13/12/2020 ?(s) 10:02:
> On 13/12/2020 02:09, Carlos Jesus via samba wrote:
> > Hi all,
> > I'm having a strange issue with one of my samba domains that I
hope you
> can
> > help with.
> > Simply put, getent group|grep "domain admins" returns (as
expected)
> domain
> > admins:x:3000061:on both my DC's , but comes out empty on both
linux
> domain
> > members.
>
> Not sure why that worked, it shouldn't because you don't have
'winbind
> enum groups = yes' in your DC's smb.conf
>
> Also you are using the 'ad' backend on the Unix domain member and
> '3000061' isn't a gidNumber, it is an xidNumber and only used
on DC's.
> This actually is a good thing, because if you do give Domain Admins a
> gidNumber, it just becomes a group and cannot own files and folders in
> sysvol.
>
> Rowland
>
>
>
>
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