[Samba] Again 'Failed to find domain 'NT AUTHORITY'. Check connection to trusted domains!'

[Marco Gaiarin]

I've hitted the error in subject trying  a backup of my sysvol.

 Mar 21 11:13:31 vdcsv1 winbindd[3494]: [2018/03/21 11:13:31.234373,  0] ../source3/winbindd/winbindd_group.c:45(fill_grent)
 Mar 21 11:13:31 vdcsv1 winbindd[3494]:   Failed to find domain 'NT AUTHORITY'. Check connection to trusted domains!


Looking on internet/list archive leadme to recent post (november 2017)
and this bug:
	https://bugzilla.samba.org/show_bug.cgi?id=12164

But i've not understood how is related.

The ACLs of my sysvol are:

 root at vdcsv1:~# getfacl /var/lib/samba/sysvol/
 getfacl: Removing leading '/' from absolute path names
 # file: var/lib/samba/sysvol/
 # owner: root
 # group: BUILTIN\134administrators
 user::rwx
 user:root:rwx
 user:BUILTIN\134administrators:rwx
 group::rwx
 group:BUILTIN\134administrators:rwx
 group:BUILTIN\134server\040operators:r-x
 group:3000002:rwx
 group:3000003:r-x
 mask::rwx
 other::---
 default:user::rwx
 default:user:root:rwx
 default:user:BUILTIN\134administrators:rwx
 default:group::---
 default:group:BUILTIN\134administrators:rwx
 default:group:BUILTIN\134server\040operators:r-x
 default:group:3000002:rwx
 default:group:3000003:r-x
 default:mask::rwx
 default:other::---

The trouble came from 'root' or groups '3000002' and '3000003'?

How can i fix them? Thanks.

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dott. Marco Gaiarin				        GNUPG Key ID: 240A3D66
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