[Samba] Mount share on Synology NAS (Samba 3.6.9) as client of Samba 4.1.9 AD DC

[Jeremy Allison]

On Wed, Jun 18, 2014 at 08:04:40PM +0200, Lars Hanke wrote:
> I set-up a basic AD DC using samba 4.1.9 successfully. I joined my
> NAS to the domain, i.e. I saw no errors and see the users and groups
> of my AD listed in the GUI of the NAS. When I try to connect to a
> share of the NAS the following happens:
> 
> mgr at ws1:~$ smbclient -U 'AD\mgr' //nas/Test
> Enter AD\mgr's password:
> Domain=[AD] OS=[Unix] Server=[Samba 3.6.9]
> tree connect failed: NT_STATUS_ACCESS_DENIED
> 
> A connect using the same credentials to a demo share on the AD DC
> itself works fine.
> 
> I granted read and write permissions to AD\mgr on Test on the NAS.
> Don't know what it actually does, but the GUI displays it. ;)
> 
> The behaviour from Win7 Home is similar. The demo share can be
> mounted, however AD\mgr seems to lack any privileges beyond that.
> The NAS share cannot be mounted due to permission problems.
> 
> Any idea how to troubleshoot this situation?

Synology uses Samba. Can you ssh onto that box
and get a debug level 10 ?