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Date: Wed, 19 Oct 2016 13:38:09 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Unknown+User Unix_Group+505 on smb shares in a domian
Message-ID: <20161019113809.GD4801@calimero.vinschen.de>
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On Sep 29 10:38, Roland Schwingel wrote:
> Hi to all..
>=20
> I have the very similar problem.
>=20
> >> > I can't do anything, it just becomes an inconvenience.
> >> >     d---r-x---+ 1 NT SERVICE+TrustedInstaller NT
> SERVICE+TrustedInstaller 0 Sep 26 08:50 c
> >> >     drwxrwx---+ 1 Administrators              Domain Users        0 =
Sep
> 14 11:57 i
> >> >     drwxrwx---+ 1 SYSTEM                      SYSTEM        0 Sep 26
> 12:55 j
> >> >     drwxrwx---+ 1 Administrators              Domain Users        0 =
Sep
> 27 07:55 m
> >> >     drwxr-xr-x  1 root                        ieng6_root        0 Jul
> 12 04:04 v
> >> >     drwxrwxr-x  1 Unknown+User                Unix_Group+505        0
> Sep 21 09:41 w
> >> >     drwxrwxr-x  1 Unix_User+99                Unix_Group+101        0
> Sep 21 15:20 y
> >> >
> >>
>=20
> > You can tell your IT dep to pull their asses up and join all servers > =
to
> AD. That would be a much more straightforward solution.
>=20
> My servers (linux with samba 4.4) are joined to the domain. An older
> cygwin 1.7 does not show this problem. Presently this problem hinders
> myself for quite some while to move to a newer cygwin version.
>=20
> In my case it shows something like:
> -rwx------ 1 Unix_User+roland	Unix_Group+develop	25 Sep 11 13:13 test.png
>=20
> And some file operations fail in cygwin (2.4.1 - this was my last version=
 I
> have tried) - mostly writting to the files, while writting to the files f=
rom
> windows directly works...
>=20
> Any help would also be appreciated.

There is a server-side solution for this problem, outlined in the docs:

https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-nfs
https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-samba

HTH,
Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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