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Message from discussion Unable to create GPO with rc3 and a few authentication problems
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Andrew Bartlett  
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 More options Oct 30 2012, 7:40 pm
Newsgroups: linux.samba
From: Andrew Bartlett <abart...@samba.org>
Date: Wed, 31 Oct 2012 00:40:02 +0100
Local: Tues, Oct 30 2012 7:40 pm
Subject: Re: [Samba] Unable to create GPO with rc3 and a few authentication problems
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On Wed, 2012-10-31 at 03:33 +0400, Dmitry Khromov wrote:
> > I had encountered a few problems with 2 Samba 4 rc3 DCs serving domain migrated from Windows 2003 R2. I post them altogether, since they look related.

> > 1. Unable to create or delete GPOs.
> > # bin/samba-tool gpo create somegpo
> > ERROR(ldb): uncaught exception - LDAP error 50 LDAP_INSUFFICIENT_ACCESS_RIGHTS -  <dsdb_access: Access check failed on CN=Policies,CN=System,DC=klin,DC=kifato-mk,DC=com> <>
> >   File "/usr/local/samba/lib64/python2.7/site-packages/samba/netcmd/__init__.py", line 175, in _run
> >     return self.run(*args, **kwargs)
> >   File "/usr/local/samba/lib64/python2.7/site-packages/samba/netcmd/gpo.py", line 952, in run
> >     self.samdb.add(m)

> > I'm not sure if this is a schema or authentication problem. Could someone suggest how should that be investigated?

> It looks like in default Windows schema only members of Domain Admins can modify cn=Policies. If one will allow "Domain controllers" group to have rw access too, the LDAP-related error disappears. However, sysvol FS access error will raise (due to the fact machine accounts do not have write permissions on sysvol/fqdn/Policies after samba-tool ntacl sysvolreset).
> So, should samba-tool really use machine account for GPO operations?

Probably not for write operations.

Andrew Bartlett

--
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org

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