Rowland Penny
2023-Jan-28 07:28 UTC
[Samba] Valid Users Does Not Like My AD Group or Syntax
On 28/01/2023 00:07, E R via samba wrote:> I am working on replacing an undocumented Samba server with one I have > setup after very helpful wiki. I am just having an issue with using an > Active Directory security group with the setting "valid users" to limit > access to the share. I would like to use an existing security group on the > Windows side to control access to the share, if possible. Server 2012 R2 > forest and OS on Windows side. I have taken pains to only use WinBind on > RHEL as Red Hat weenies will point you to using tools like "realm" that > introduce SSSD that I do not want to use. > > valid user = MYDOMAIN\myuserid > If I use the above syntax for my user account I can gain access to the > share just as I expect. > > valid user = +MYDOMAIN\"MySecurityGroup" > The above syntax does not work (I am a member of the group). I also tried > omitting the quotes around the group name since I do not have a space in > the name. I also tried using the alternate syntax that you can use on > Windows like MySecurityGroup at domain.com. > > getent group MYDOMAIN\\MySecurityGroup > The above command does return my group from AD. > > chown root:MySecurityGroup somefile.txt > This above command does update the permissions so that the group is used > and displays on the ls command. > > SID +MYDOMAIN\MySecurityGroup is not in a valid format > I upped the log level to 3 and I see the above message. > > IDMAP Setting: > idmap config * : backend = autorid > idmap config * : range = 100000-19999999 > idmap config * : rangesize = 1000000Can we please see the output of 'testparm -s'. Can you also tell us what version of Samba you are using and the RHEL version. Rowland
[root at local]# testparm -s
Load smb config files from /etc/samba/smb.conf
Loaded services file OK.
Server role: ROLE_DOMAIN_MEMBER
# Global parameters
[global]
bind interfaces only = Yes
disable netbios = Yes
dns proxy = No
kerberos encryption types = strong
load printers = No
log file = /var/log/samba/log.%m
ntlm auth = disabled
realm = MYDOMAIN.COM
security = ADS
server signing = required
server string = Samba Server
unix extensions = No
winbind enum groups = Yes
winbind enum users = Yes
winbind refresh tickets = Yes
workgroup = MYDOMAIN
idmap config * : rangesize = 1000000
idmap config * : range = 100000-19999999
idmap config * : backend = autorid
hosts allow = 192.168.1.3
[www-test]
comment = Samba share for test
create mask = 0664
directory mask = 0775
path = /export/home/www/htdocs/test
read only = No
valid users = +MYDOMAIN\Samba-www-test
On Sat, Jan 28, 2023 at 1:29 AM Rowland Penny via samba <
samba at lists.samba.org> wrote:
>
>
> On 28/01/2023 00:07, E R via samba wrote:
> > I am working on replacing an undocumented Samba server with one I have
> > setup after very helpful wiki. I am just having an issue with using
an
> > Active Directory security group with the setting "valid
users" to limit
> > access to the share. I would like to use an existing security group
on
> the
> > Windows side to control access to the share, if possible. Server 2012
R2
> > forest and OS on Windows side. I have taken pains to only use WinBind
on
> > RHEL as Red Hat weenies will point you to using tools like
"realm" that
> > introduce SSSD that I do not want to use.
> >
> > valid user = MYDOMAIN\myuserid
> > If I use the above syntax for my user account I can gain access to the
> > share just as I expect.
> >
> > valid user = +MYDOMAIN\"MySecurityGroup"
> > The above syntax does not work (I am a member of the group). I also
> tried
> > omitting the quotes around the group name since I do not have a space
in
> > the name. I also tried using the alternate syntax that you can use on
> > Windows like MySecurityGroup at domain.com.
> >
> > getent group MYDOMAIN\\MySecurityGroup
> > The above command does return my group from AD.
> >
> > chown root:MySecurityGroup somefile.txt
> > This above command does update the permissions so that the group is
used
> > and displays on the ls command.
> >
> > SID +MYDOMAIN\MySecurityGroup is not in a valid format
> > I upped the log level to 3 and I see the above message.
> >
> > IDMAP Setting:
> > idmap config * : backend = autorid
> > idmap config * : range = 100000-19999999
> > idmap config * : rangesize = 1000000
>
>
> Can we please see the output of 'testparm -s'.
> Can you also tell us what version of Samba you are using and the RHEL
> version.
>
> Rowland
>
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions: https://lists.samba.org/mailman/options/samba
>