[Samba] Group Policy Issues

Anantha Raghava raghav at exzatechconsulting.com
Sat Dec 9 02:39:14 UTC 2017

Hello James,

Thanks for your suggestion.

When we had two servers in the pool, we were pushing GPO using rsync 
from PDC at every 30 minutes. However when we added the two more domain 
controllers, our rsync script turned to be a pull from PDC every 30 
minutes. Would this have made those policy objects inconsistent?

We have set up sysvol replication using rsync unidirectional that is a 
push from pdc.*******.com to dc1.*******.com every 30 minutes. However 
on the dc2.*******.com and dc3.********.com the cronjob executes on 
dc2.*******.com and dc3.*********.com every 30 minutes and pulls the 
contents of sysvol. cron job is working properly on all servers.

Surprising part is, in a specific network the client PCs fail to read 
and apply GPO. Whereas in other network, we find it is working properly. 
Command "gpresult /r" on client shows Group Policy applied from 
"pdc.******.com" whereas the logon sever remains either dc1 or dc2 or 
dc3 or pdc. The same pdc.********.com throws error in a specific 
network. This makes us think whether it is a network issue. One more 
important observation is if we stop samba-ad-dc on either dc2 or dc3 
(two more domain controllers) even the specific network segment that is 
giving problem also works properly. This gives makes us to suspect the 
"GPO Pull" is making GPO inconsistent with PDC. Probably we have to push 
the GPO to all additional domain controllers from pdc.*********.com 
using rsync?

In fact, we have even tested, "software push" to clients using GPO, 
startup scripts etc., and every thing was working properly till 
inclusion of dc2 and dc3.

Your suggestions are welcome.


Thanks & Regards,

Anantha Raghava

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On 08/12/17 6:44 PM, lingpanda101 via samba wrote:
> On 12/7/2017 7:53 PM, Anantha Raghava via samba wrote:
>> Hi,
>> On two of our 4 Domain Controller Servers, the Group Policy Objects 
>> have developed some issues. Windows are reporting that Group Policy 
>> objects cannot be read.
>> Any recommendation to reset the Group Policy Objects. We are taking 
>> daily backup using Samba_Backup script.
>> In the past, there was a recommendation not use "samba-tool ntacl 
>> sysvolreset". Can we use it now. By the way we are using Samba 
>> version 4.7.1.
> You can use sysvolreset safely. However I would check your sysvol 
> replication process and verify no errors are being reported.

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