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Richard

2017-Jan-13 07:00 UTC

[Samba] Samba 4.5.3 AD DC - issues with sysvol when setting up Group Policies

Also, I'm not sure whether this has any relevance to the problem but I did
at one point try to set up a secondary AD  server but was struggling to get it
going so demoted it using "Demote an Offline Domain Controller" from
this page

https://wiki.samba.org/index.php/Demote_a_Samba_AD_DC

I also went through the "Verifying the Demotion" checks on this page
and all looked fine

-----Original Message-----
From: Richard [mailto:p1 at originsystems.co.za] 
Sent: 12 January 2017 23:34
To: 'samba at lists.samba.org' <samba at lists.samba.org>
Subject: RE: [Samba] Samba 4.5.3 AD DC - issues with sysvol when setting up
Group Policies

I'm not sure if of value but here also is the richard.h group information as
reported by Windows on the client:

C:\WINDOWS\system32>whoami /groups

GROUP INFORMATION
-----------------

Group Name                                Type             SID                  
Attributes
========================================= ================
============================================
==============================================================CT\osDirector     
Group            S-1-5-21-962076006-582617201-2751578557-1107 Mandatory group,
Enabled by default, Enabled group
Everyone                                  Well-known group S-1-1-0              
Mandatory group, Enabled by default, Enabled group
BUILTIN\Administrators                    Alias            S-1-5-32-544         
Mandatory group, Enabled by default, Enabled group, Group owner
BUILTIN\Performance Log Users             Alias            S-1-5-32-559         
Mandatory group, Enabled by default, Enabled group
BUILTIN\Users                             Alias            S-1-5-32-545         
Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\INTERACTIVE                  Well-known group S-1-5-4              
Mandatory group, Enabled by default, Enabled group
CONSOLE LOGON                             Well-known group S-1-2-1              
Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\Authenticated Users          Well-known group S-1-5-11             
Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\This Organization            Well-known group S-1-5-15             
Mandatory group, Enabled by default, Enabled group
LOCAL                                     Well-known group S-1-2-0              
Mandatory group, Enabled by default, Enabled group
CT\Domain Admins                          Group           
S-1-5-21-962076006-582617201-2751578557-512  Mandatory group, Enabled by
default, Enabled group
CT\Denied RODC Password Replication Group Alias           
S-1-5-21-962076006-582617201-2751578557-572  Mandatory group, Enabled by
default, Enabled group
CT\osDevelopment                          Group           
S-1-5-21-962076006-582617201-2751578557-1110 Mandatory group, Enabled by
default, Enabled group
CT\osSecurity                             Group           
S-1-5-21-962076006-582617201-2751578557-1111 Mandatory group, Enabled by
default, Enabled group
CT\osVPN                                  Group           
S-1-5-21-962076006-582617201-2751578557-1112 Mandatory group, Enabled by
default, Enabled group
Mandatory Label\High Mandatory Level      Label            S-1-16-12288

-----Original Message-----
From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of Richard via
samba
Sent: 12 January 2017 23:21
To: samba at lists.samba.org
Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol when setting up
Group Policies

cool!

root at dc1:~ # wbinfo -r richard.h
10001
3000008
10000
10014
10004
10005
3000005
3000009
3000000

-----Original Message-----
From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of lingpanda101
via samba
Sent: 12 January 2017 22:57
To: samba at lists.samba.org
Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol when setting up
Group Policies

On 1/12/2017 3:47 PM, Richard via samba wrote:> Hi
>
> root at dc1:~ # samba-tool dbcheck --cross-ncs --reset-well-known-acls 
> --fix --yes ...some error information...
> Checked 3647 objects (2 errors)
> root at dc1:~ # samba-tool dbcheck --cross-ncs --reset-well-known-acls 
> --fix Checking 3647 objects Checked 3647 objects (0 errors)
>
> root at dc1:~ # getfacl /usr/local/samba/var/locks/sysvol/
> getfacl: Removing leading '/' from absolute path names # file: 
> usr/local/samba/var/locks/sysvol/ # owner: root # group: 3000000 
> user::rwx user:root:rwx user:3000000:rwx user:3000001:r-x 
> user:3000002:rwx user:3000003:r-x group::rwx group:3000000:rwx 
> group:3000001:r-x group:3000002:rwx group:3000003:r-x mask::rwx
> other::---
> default:user::rwx
> default:user:root:rwx
> default:user:3000000:rwx
> default:user:3000001:r-x
> default:user:3000002:rwx
> default:user:3000003:r-x
> default:group::---
> default:group:3000000:rwx
> default:group:3000001:r-x
> default:group:3000002:rwx
> default:group:3000003:r-x
> default:mask::rwx
> default:other::---
>
>
>   gpupdate /force still fails :o(
>
> -----Original Message-----
> From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of
> lingpanda101 via samba
> Sent: 12 January 2017 22:34
> To: samba at lists.samba.org
> Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol when 
> setting up Group Policies
>
> On 1/12/2017 3:25 PM, Richard via samba wrote:
>> Hi
>>
>> here are the commands in the order I ran them:
>>
>> root at dc1:~ # systemctl stop samba
>> root at dc1:~ # net cache flush
>> root at dc1:~ # samba-tool ntacl sysvolreset root at dc1:~ # net cache 
>> flush root at dc1:~ # samba-tool ntacl sysvolcheck root at dc1:~ # 
>> systemctl start samba root at dc1:~ # smbclient //localhost/sysvol 
>> -UAdministrator -c 'ls'
>> Enter Administrator's password:
>> Domain=[CT] OS=[Windows 6.1] Server=[Samba 4.5.3]
>>     .                                   D        0  Thu Jan 12 22:14:18
2017
>>     ..                                  D        0  Thu Jan 12 22:14:45
2017
>>     ct.mydomain.com              D        0  Thu Feb 18 00:16:24 2016
>>
>> 		244669724 blocks of size 1024. 235669260 blocks available 
>> root at dc1:~ # smbclient //localhost/sysvol -Urichard.h -c
'ls'
>> Enter richard.h's password:
>> Domain=[CT] OS=[Windows 6.1] Server=[Samba 4.5.3] 
>> NT_STATUS_ACCESS_DENIED listing \* root at dc1:~ #
>>
>> then on the client:
>>
>> C:\WINDOWS\system32>gpupdate /force
>> Updating policy...
>>
>> Computer policy could not be updated successfully. The following errors
were encountered:
>>
>> The processing of Group Policy failed. Windows attempted to read the
file
\\ct.mydomain.com\SysVol\ct.mydomain.com\Policies\{073A6C41-BE24-4CA2-8F00-386A9F2D3908}\gpt.ini
from a domain controller and was not successful. Group Policy settings may not
be applied until this event is resolved. This issue may be transient and could
be caused by one or more of the following:
>> a) Name Resolution/Network Connectivity to the current domain
controller.
>> b) File Replication Service Latency (a file created on another domain
controller has not replicated to the current domain controller).
>> c) The Distributed File System (DFS) client has been disabled.
>> User Policy could not be updated successfully. The following errors
were encountered:
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of
>> lingpanda101 via samba
>> Sent: 12 January 2017 21:54
>> To: samba at lists.samba.org
>> Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol when 
>> setting up Group Policies
>>
>> On 1/12/2017 2:47 PM, Richard via samba wrote:
>>> Hi Rowland,
>>>
>>> I've done the below and retried to log on as a normal user, but
sadly:
>>>
>>> C:\> gpupdate /force     still returns
>>>
>>> The processing of Group Policy failed. Windows attempted to read
the file
\\ct.mydomain.com\sysvol\ct.mydomain.com\Policies\{31B2F340-016D-11D2-945F-00C04FB984F9}\gpt.ini
from a domain controller and was not successful. Group Policy settings may not
be applied until this event is resolved. This issue may be transient and could
be caused by one or more of the following:
>>> a) Name Resolution/Network Connectivity to the current domain
controller.
>>> b) File Replication Service Latency (a file created on another
domain controller has not replicated to the current domain controller).
>>> c) The Distributed File System (DFS) client has been disabled.
>>>
>>> Also a normal domain user still can't get a listing on sysvol
>>>
>>> smbclient //localhost/sysvol -Urichard.h -c 'ls'
>>> Enter richard.h's password:
>>> Domain=[CT] OS=[Windows 6.1] Server=[Samba 4.5.3] 
>>> NT_STATUS_ACCESS_DENIED listing \*
>>>
>>> but Administrator can fine:
>>>
>>> smbclient //localhost/sysvol -UAdministrator -c 'ls'
>>> Enter Administrator's password:
>>> Domain=[CT] OS=[Windows 6.1] Server=[Samba 4.5.3]
>>>      .                                   D        0  Thu Jan 12
20:58:10 2017
>>>      ..                                  D        0  Thu Jan 12
21:21:00 2017
>>>      ct.mydomain.com    D        0  Thu Feb 18 00:16:24 2016
>>>
>>> 		244669724 blocks of size 1024. 235669456 blocks available
>>>
>>>
>>> Also, I've rerun getfacl and I see that GID 10013 still exists
for both group and other, even though I have removed it from "domain
admins"
>>>
>>> group::rwx
>>> group:10013:rwx
>>> group:10014:r-x
>>> group:3000002:rwx
>>> group:3000003:r-x
>>> group:3000006:rwx
>>> group:3000010:r-x
>>> mask::rwx
>>> other::---
>>> default:user::rwx
>>> default:user:root:rwx
>>> default:user:3000002:rwx
>>> default:user:3000003:r-x
>>> default:user:3000006:rwx
>>> default:user:3000010:r-x
>>> default:group::---
>>> default:group:10013:rwx
>>> default:group:10014:r-x
>>> default:group:3000002:rwx
>>> default:group:3000003:r-x
>>> default:group:3000006:rwx
>>> default:group:3000010:r-x
>>> default:mask::rwx
>>> default:other::---
>>>
>>> so not really sure where to go from here
>>>
>>> (btw - I won't keep saying thank you but just to let you know
that I
>>> really really appreciate all the help you guys are giving on this)
>>>
>>> Richard
>>>
>>> PS - I just thought may be worthwhile pasting my smb.conf file here
>>> (domain name and forwarder ips changed)
>>>
>>>     [global]
>>> 	workgroup = CT
>>> 	realm = ct.mydomain.com
>>> 	netbios name = DC1
>>> 	server role = active directory domain controller
>>>
>>>                  allow dns updates = nonsecure and secure
>>>            
>>> 	dns forwarder = 1.2.3.4 10.20.30.40
>>> 	idmap_ldb:use rfc2307 = yes
>>>            
>>>                  ldap server require strong auth = no
>>>
>>> [netlogon]
>>> 	path = /usr/local/samba/var/locks/sysvol/ct.mydomain.com/scripts
>>> 	read only = No
>>>
>>> [sysvol]
>>> 	path = /usr/local/samba/var/locks/sysvol
>>> 	read only = No
>>>
>>>
>>> -----Original Message-----
>>> From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of 
>>> Rowland Penny via samba
>>> Sent: 12 January 2017 21:10
>>> To: samba at lists.samba.org
>>> Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol when 
>>> setting up Group Policies
>>>
>>> On Thu, 12 Jan 2017 20:46:15 +0200
>>> Richard via samba <samba at lists.samba.org> wrote:
>>>
>>>> Hi James
>>>>
>>>> The output is as follows...
>>>>
>>>> wbinfo --gid-info=10013    =>  CT\domain admins:x:10013:
>>>>
>>>> wbinfo --uid-info=3000008 => CT\domain 
>>>> admins:*:3000008:3000008::/home/CT/domain admins:/bin/false
>>> If you remove the gidNumber from Domain Admins, you will find that
it gets the same GID as its UID '3000008'
>>>
>>>> Yes I have set "domain admins" to have NIS domain
"CT" and GID "10013"
>>>> - I can remove this no problem
>>> See above and I would suggest removing the gidNumber, then run
'net cache flush'
>>>
>>>> Yes I have set "domain users" to have NIS domain
"CT" and GID "10014"
>>>> - I can remove this no problem
>>> No that is OK
>>>
>>>> No I haven't set a UID or GID for Administrator
>>> Good, you just Administrator into a normal Unix user if you do.
>>>
>>>> I do indeed have 'idmap_ldb:use rfc2307 = Yes' - should
I remove
>>>> this from smb.conf?
>>> No, you need it
>>>
>>> Rowland
>>>
>>> --
>>> To unsubscribe from this list go to the following URL and read the
>>> instructions:  https://lists.samba.org/mailman/options/samba
>>>
>>>
>> Did you run 'net cache flush'?
>>
>> --
>> - James
>>
>>
>> --
>> To unsubscribe from this list go to the following URL and read the
>> instructions:  https://lists.samba.org/mailman/options/samba
>>
>>
> What is the output of the below now?
>
> getfacl /usr/local/samba/var/locks/sysvol/
>
> You may also need to run
>
> samba-tool dbcheck --cross-ncs --reset-well-known-acls --fix
>
>
> --
> - James
>
>
Progress

What is the output of

'wbinfo -r richard.h'


--
- James


--
To unsubscribe from this list go to the following URL and read the
instructions:  https://lists.samba.org/mailman/options/samba


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Jonathan Hunter

2017-Jan-14 17:09 UTC

head link

[Samba] Samba 4.5.3 AD DC - issues with sysvol when setting up Group Policies

Hi All,

Trying to avoid making this into a "Me too" response :) but this is
the single largest issue I have with Samba at the moment, I've
struggled with this for literally years, both before I switched to
rfc2307 (which did help in many areas) and since switching. I am
following this thread with great interest, in the hope that I can get
my GPOs working, too.

Currently I've hit a different issue (Samba bug ID 12363) that has
stopped me from being able to debug this further; but suffice to say -
I feel your pain.

I am particularly interested in the interaction between giving 'Domain
Users' its own GID, and having GPOs stored in sysvol on the DCs, which
is historically the place that has the most trouble with user mappings
etc. (that is why I initially switched to rfc2307, and subsequently
demoted my main file server from being a DC, also)

If we don't give built-in groups their own UID/GID though, then how do
we ensure consistency between multiple DCs and also member
fileservers? This is probably the area of samba I'm least expert on
(uids, XIDs, rfc2307, idmap, file servers vs DCs, etc..)

Cheers,

Jonathan

On 13 January 2017 at 07:00, Richard via samba <samba at lists.samba.org>
wrote:> Also, I'm not sure whether this has any relevance to the problem but I
did at one point try to set up a secondary AD  server but was struggling to get
it going so demoted it using "Demote an Offline Domain Controller"
from this page
>
> https://wiki.samba.org/index.php/Demote_a_Samba_AD_DC
>
> I also went through the "Verifying the Demotion" checks on this
page and all looked fine
>
> -----Original Message-----
> From: Richard [mailto:p1 at originsystems.co.za]
> Sent: 12 January 2017 23:34
> To: 'samba at lists.samba.org' <samba at lists.samba.org>
> Subject: RE: [Samba] Samba 4.5.3 AD DC - issues with sysvol when setting up
Group Policies
>
> I'm not sure if of value but here also is the richard.h group
information as reported by Windows on the client:
>
> C:\WINDOWS\system32>whoami /groups
>
> GROUP INFORMATION
> -----------------
>
> Group Name                                Type             SID             
Attributes
> ========================================= ================
============================================
==============================================================> CT\osDirector
Group            S-1-5-21-962076006-582617201-2751578557-1107 Mandatory group,
Enabled by default, Enabled group
> Everyone                                  Well-known group S-1-1-0         
Mandatory group, Enabled by default, Enabled group
> BUILTIN\Administrators                    Alias            S-1-5-32-544    
Mandatory group, Enabled by default, Enabled group, Group owner
> BUILTIN\Performance Log Users             Alias            S-1-5-32-559    
Mandatory group, Enabled by default, Enabled group
> BUILTIN\Users                             Alias            S-1-5-32-545    
Mandatory group, Enabled by default, Enabled group
> NT AUTHORITY\INTERACTIVE                  Well-known group S-1-5-4         
Mandatory group, Enabled by default, Enabled group
> CONSOLE LOGON                             Well-known group S-1-2-1         
Mandatory group, Enabled by default, Enabled group
> NT AUTHORITY\Authenticated Users          Well-known group S-1-5-11        
Mandatory group, Enabled by default, Enabled group
> NT AUTHORITY\This Organization            Well-known group S-1-5-15        
Mandatory group, Enabled by default, Enabled group
> LOCAL                                     Well-known group S-1-2-0         
Mandatory group, Enabled by default, Enabled group
> CT\Domain Admins                          Group           
S-1-5-21-962076006-582617201-2751578557-512  Mandatory group, Enabled by
default, Enabled group
> CT\Denied RODC Password Replication Group Alias           
S-1-5-21-962076006-582617201-2751578557-572  Mandatory group, Enabled by
default, Enabled group
> CT\osDevelopment                          Group           
S-1-5-21-962076006-582617201-2751578557-1110 Mandatory group, Enabled by
default, Enabled group
> CT\osSecurity                             Group           
S-1-5-21-962076006-582617201-2751578557-1111 Mandatory group, Enabled by
default, Enabled group
> CT\osVPN                                  Group           
S-1-5-21-962076006-582617201-2751578557-1112 Mandatory group, Enabled by
default, Enabled group
> Mandatory Label\High Mandatory Level      Label            S-1-16-12288
>
> -----Original Message-----
> From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of Richard
via samba
> Sent: 12 January 2017 23:21
> To: samba at lists.samba.org
> Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol when setting up
Group Policies
>
> cool!
>
> root at dc1:~ # wbinfo -r richard.h
> 10001
> 3000008
> 10000
> 10014
> 10004
> 10005
> 3000005
> 3000009
> 3000000
>
> -----Original Message-----
> From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of
lingpanda101 via samba
> Sent: 12 January 2017 22:57
> To: samba at lists.samba.org
> Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol when setting up
Group Policies
>
> On 1/12/2017 3:47 PM, Richard via samba wrote:
>> Hi
>>
>> root at dc1:~ # samba-tool dbcheck --cross-ncs --reset-well-known-acls
>> --fix --yes ...some error information...
>> Checked 3647 objects (2 errors)
>> root at dc1:~ # samba-tool dbcheck --cross-ncs --reset-well-known-acls
>> --fix Checking 3647 objects Checked 3647 objects (0 errors)
>>
>> root at dc1:~ # getfacl /usr/local/samba/var/locks/sysvol/
>> getfacl: Removing leading '/' from absolute path names # file:
>> usr/local/samba/var/locks/sysvol/ # owner: root # group: 3000000
>> user::rwx user:root:rwx user:3000000:rwx user:3000001:r-x
>> user:3000002:rwx user:3000003:r-x group::rwx group:3000000:rwx
>> group:3000001:r-x group:3000002:rwx group:3000003:r-x mask::rwx
>> other::---
>> default:user::rwx
>> default:user:root:rwx
>> default:user:3000000:rwx
>> default:user:3000001:r-x
>> default:user:3000002:rwx
>> default:user:3000003:r-x
>> default:group::---
>> default:group:3000000:rwx
>> default:group:3000001:r-x
>> default:group:3000002:rwx
>> default:group:3000003:r-x
>> default:mask::rwx
>> default:other::---
>>
>>
>>   gpupdate /force still fails :o(
>>
>> -----Original Message-----
>> From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of
>> lingpanda101 via samba
>> Sent: 12 January 2017 22:34
>> To: samba at lists.samba.org
>> Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol when
>> setting up Group Policies
>>
>> On 1/12/2017 3:25 PM, Richard via samba wrote:
>>> Hi
>>>
>>> here are the commands in the order I ran them:
>>>
>>> root at dc1:~ # systemctl stop samba
>>> root at dc1:~ # net cache flush
>>> root at dc1:~ # samba-tool ntacl sysvolreset root at dc1:~ # net
cache
>>> flush root at dc1:~ # samba-tool ntacl sysvolcheck root at dc1:~ #
>>> systemctl start samba root at dc1:~ # smbclient //localhost/sysvol
>>> -UAdministrator -c 'ls'
>>> Enter Administrator's password:
>>> Domain=[CT] OS=[Windows 6.1] Server=[Samba 4.5.3]
>>>     .                                   D        0  Thu Jan 12
22:14:18 2017
>>>     ..                                  D        0  Thu Jan 12
22:14:45 2017
>>>     ct.mydomain.com              D        0  Thu Feb 18 00:16:24
2016
>>>
>>>              244669724 blocks of size 1024. 235669260 blocks
available
>>> root at dc1:~ # smbclient //localhost/sysvol -Urichard.h -c
'ls'
>>> Enter richard.h's password:
>>> Domain=[CT] OS=[Windows 6.1] Server=[Samba 4.5.3]
>>> NT_STATUS_ACCESS_DENIED listing \* root at dc1:~ #
>>>
>>> then on the client:
>>>
>>> C:\WINDOWS\system32>gpupdate /force
>>> Updating policy...
>>>
>>> Computer policy could not be updated successfully. The following
errors were encountered:
>>>
>>> The processing of Group Policy failed. Windows attempted to read
the file
\\ct.mydomain.com\SysVol\ct.mydomain.com\Policies\{073A6C41-BE24-4CA2-8F00-386A9F2D3908}\gpt.ini
from a domain controller and was not successful. Group Policy settings may not
be applied until this event is resolved. This issue may be transient and could
be caused by one or more of the following:
>>> a) Name Resolution/Network Connectivity to the current domain
controller.
>>> b) File Replication Service Latency (a file created on another
domain controller has not replicated to the current domain controller).
>>> c) The Distributed File System (DFS) client has been disabled.
>>> User Policy could not be updated successfully. The following errors
were encountered:
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of
>>> lingpanda101 via samba
>>> Sent: 12 January 2017 21:54
>>> To: samba at lists.samba.org
>>> Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol when
>>> setting up Group Policies
>>>
>>> On 1/12/2017 2:47 PM, Richard via samba wrote:
>>>> Hi Rowland,
>>>>
>>>> I've done the below and retried to log on as a normal user,
but sadly:
>>>>
>>>> C:\> gpupdate /force     still returns
>>>>
>>>> The processing of Group Policy failed. Windows attempted to
read the file
\\ct.mydomain.com\sysvol\ct.mydomain.com\Policies\{31B2F340-016D-11D2-945F-00C04FB984F9}\gpt.ini
from a domain controller and was not successful. Group Policy settings may not
be applied until this event is resolved. This issue may be transient and could
be caused by one or more of the following:
>>>> a) Name Resolution/Network Connectivity to the current domain
controller.
>>>> b) File Replication Service Latency (a file created on another
domain controller has not replicated to the current domain controller).
>>>> c) The Distributed File System (DFS) client has been disabled.
>>>>
>>>> Also a normal domain user still can't get a listing on
sysvol
>>>>
>>>> smbclient //localhost/sysvol -Urichard.h -c 'ls'
>>>> Enter richard.h's password:
>>>> Domain=[CT] OS=[Windows 6.1] Server=[Samba 4.5.3]
>>>> NT_STATUS_ACCESS_DENIED listing \*
>>>>
>>>> but Administrator can fine:
>>>>
>>>> smbclient //localhost/sysvol -UAdministrator -c 'ls'
>>>> Enter Administrator's password:
>>>> Domain=[CT] OS=[Windows 6.1] Server=[Samba 4.5.3]
>>>>      .                                   D        0  Thu Jan 12
20:58:10 2017
>>>>      ..                                  D        0  Thu Jan 12
21:21:00 2017
>>>>      ct.mydomain.com    D        0  Thu Feb 18 00:16:24 2016
>>>>
>>>>             244669724 blocks of size 1024. 235669456 blocks
available
>>>>
>>>>
>>>> Also, I've rerun getfacl and I see that GID 10013 still
exists for both group and other, even though I have removed it from "domain
admins"
>>>>
>>>> group::rwx
>>>> group:10013:rwx
>>>> group:10014:r-x
>>>> group:3000002:rwx
>>>> group:3000003:r-x
>>>> group:3000006:rwx
>>>> group:3000010:r-x
>>>> mask::rwx
>>>> other::---
>>>> default:user::rwx
>>>> default:user:root:rwx
>>>> default:user:3000002:rwx
>>>> default:user:3000003:r-x
>>>> default:user:3000006:rwx
>>>> default:user:3000010:r-x
>>>> default:group::---
>>>> default:group:10013:rwx
>>>> default:group:10014:r-x
>>>> default:group:3000002:rwx
>>>> default:group:3000003:r-x
>>>> default:group:3000006:rwx
>>>> default:group:3000010:r-x
>>>> default:mask::rwx
>>>> default:other::---
>>>>
>>>> so not really sure where to go from here
>>>>
>>>> (btw - I won't keep saying thank you but just to let you
know that I
>>>> really really appreciate all the help you guys are giving on
this)
>>>>
>>>> Richard
>>>>
>>>> PS - I just thought may be worthwhile pasting my smb.conf file
here
>>>> (domain name and forwarder ips changed)
>>>>
>>>>     [global]
>>>>     workgroup = CT
>>>>     realm = ct.mydomain.com
>>>>     netbios name = DC1
>>>>     server role = active directory domain controller
>>>>
>>>>                  allow dns updates = nonsecure and secure
>>>>
>>>>     dns forwarder = 1.2.3.4 10.20.30.40
>>>>     idmap_ldb:use rfc2307 = yes
>>>>
>>>>                  ldap server require strong auth = no
>>>>
>>>> [netlogon]
>>>>     path =
/usr/local/samba/var/locks/sysvol/ct.mydomain.com/scripts
>>>>     read only = No
>>>>
>>>> [sysvol]
>>>>     path = /usr/local/samba/var/locks/sysvol
>>>>     read only = No
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: samba [mailto:samba-bounces at lists.samba.org] On Behalf
Of
>>>> Rowland Penny via samba
>>>> Sent: 12 January 2017 21:10
>>>> To: samba at lists.samba.org
>>>> Subject: Re: [Samba] Samba 4.5.3 AD DC - issues with sysvol
when
>>>> setting up Group Policies
>>>>
>>>> On Thu, 12 Jan 2017 20:46:15 +0200
>>>> Richard via samba <samba at lists.samba.org> wrote:
>>>>
>>>>> Hi James
>>>>>
>>>>> The output is as follows...
>>>>>
>>>>> wbinfo --gid-info=10013    =>  CT\domain admins:x:10013:
>>>>>
>>>>> wbinfo --uid-info=3000008 => CT\domain
>>>>> admins:*:3000008:3000008::/home/CT/domain admins:/bin/false
>>>> If you remove the gidNumber from Domain Admins, you will find
that it gets the same GID as its UID '3000008'
>>>>
>>>>> Yes I have set "domain admins" to have NIS domain
"CT" and GID "10013"
>>>>> - I can remove this no problem
>>>> See above and I would suggest removing the gidNumber, then run
'net cache flush'
>>>>
>>>>> Yes I have set "domain users" to have NIS domain
"CT" and GID "10014"
>>>>> - I can remove this no problem
>>>> No that is OK
>>>>
>>>>> No I haven't set a UID or GID for Administrator
>>>> Good, you just Administrator into a normal Unix user if you do.
>>>>
>>>>> I do indeed have 'idmap_ldb:use rfc2307 = Yes' -
should I remove
>>>>> this from smb.conf?
>>>> No, you need it
>>>>
>>>> Rowland
>>>>
>>>> --
>>>> To unsubscribe from this list go to the following URL and read
the
>>>> instructions:  https://lists.samba.org/mailman/options/samba
>>>>
>>>>
>>> Did you run 'net cache flush'?
>>>
>>> --
>>> - James
>>>
>>>
>>> --
>>> To unsubscribe from this list go to the following URL and read the
>>> instructions:  https://lists.samba.org/mailman/options/samba
>>>
>>>
>> What is the output of the below now?
>>
>> getfacl /usr/local/samba/var/locks/sysvol/
>>
>> You may also need to run
>>
>> samba-tool dbcheck --cross-ncs --reset-well-known-acls --fix
>>
>>
>> --
>> - James
>>
>>
>
> Progress
>
> What is the output of
>
> 'wbinfo -r richard.h'
>
>
> --
> - James
>
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba
>
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba
>
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba


-- 
"If we knew what it was we were doing, it would not be called
research, would it?"
      - Albert Einstein

Rowland Penny

2017-Jan-14 18:04 UTC

head link

[Samba] Samba 4.5.3 AD DC - issues with sysvol when setting up Group Policies

On Sat, 14 Jan 2017 17:09:47 +0000
Jonathan Hunter via samba <samba at lists.samba.org> wrote:
> Hi All,
> 
> Trying to avoid making this into a "Me too" response :) but this
is
> the single largest issue I have with Samba at the moment, I've
> struggled with this for literally years, both before I switched to
> rfc2307 (which did help in many areas) and since switching. I am
> following this thread with great interest, in the hope that I can get
> my GPOs working, too.
> 
> Currently I've hit a different issue (Samba bug ID 12363) that has
> stopped me from being able to debug this further; but suffice to say -
> I feel your pain.
> 
> I am particularly interested in the interaction between giving 'Domain
> Users' its own GID, and having GPOs stored in sysvol on the DCs, which
> is historically the place that has the most trouble with user mappings
> etc. (that is why I initially switched to rfc2307, and subsequently
> demoted my main file server from being a DC, also)
If you only have Samba AD DCs and Windows clients, you do not need to
give any group a gidNumber. It is only when you throw Unix domain
members in to the mix AND use the winbind 'ad' backend, that you need
to give Domain Users a gidNumber.
   > 
> If we don't give built-in groups their own UID/GID though, then how do
> we ensure consistency between multiple DCs and also member
> fileservers? This is probably the area of samba I'm least expert on
> (uids, XIDs, rfc2307, idmap, file servers vs DCs, etc..)
> 
Samba AD DCs use idmap.ldb to store the mappings between SIDs and
xidNumbers, the numbers are always in the '3000000' range. They are
also allocated on a first come basis, when a user or group first
contacts a Samba DC it is allocated the next xidNumber, this is why
you are not sure to get the same ID number on every DC. This is not a
problem however, as each DC knows the xidNumber for the the group. So
if you rsync sysvol between DCs and then run sysvolrest, the correct
xidNumber for that DC will be set. You can also copy idmap.ldb between
DCs as well, but I don't see the point.

The only way to get consistent IDs for the users and groups that matter,
is to use the winbind 'ad' backend. This means giving users a unique
UidNumber and Domain Users a gidNumber. These numbers will be used on
DCs instead of the xidNumbers and on Unix domain members provided that
the 'idmap config' lines are set up correctly.
This is what I use on domain members:

    idmap config *:backend = tdb
    idmap config *:range = 2000-9999
    ## map ids from the domain  the ranges may not overlap !
    idmap config SAMDOM : backend = ad
    idmap config SAMDOM : schema_mode = rfc2307
    idmap config SAMDOM : range = 10000-999999

The '*' range is for the well known SIDs (Domain Admins,
Administrators etc) 
The 'SAMDOM' range is for the DOMAIN users & groups that you create
and
Domain Users.

It doesn't really matter what ID the well known SIDs get, as long as the
Unix machine knows which SID the ID belongs to.

Hope this help, but feel free to ask questions.

Rowland

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