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From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin-developers@cygwin.com
Subject: Re: Cygwin 3.5 mapping uid/gid on NFSv4 filesystem to unexpected IDs ...
Date: Mon, 13 Nov 2023 20:39:17 +0100	[thread overview]
Message-ID: <ZVJ7ZU3BtsoJutJd@calimero.vinschen.de> (raw)
In-Reply-To: <CAKAoaQki+KcY6=rDnzWMrxFomXnJpoLD97Xj+XO2BLJ8AdU-Yw@mail.gmail.com>

On Nov 10 13:22, Roland Mainz wrote:
> On Tue, Oct 31, 2023 at 5:20 PM Roland Mainz <roland.mainz@nrubsig.org> wrote:
> >
> > Is the Cygwin behaviour (i.e. mapping of NFS3Attr uid/gid to different
> > uid/gid in Cygwin $ ls -n #) intended ?
> 
> In the meantime I tried this:
> ---- snip ----
> # Map NFSv4 uid/gid 1:1 to Cygwin uid/gid - does not work
> regtool -i set '/HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/NTDS/trustPosixOffset'
> 0x0
> regtool -i set '/HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Netlogon/Parameters/trustPosixOffset'
> 0x0
> ---- snip ----

This can't work.  trustPosixOffset is not a value in the registry. It's
stored in AD only and fetched from the domain's system container via
LDAP.

uid/gid mapping between NFS server and Cygwin works by utilizing the NFS
client's identity mapping as described in
https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-nfs

If this doesn't fit your needs, you have to overload what's given to you
by maintaining this info via /etc/passwd and /etc/group entries.


Corinna

  reply	other threads:[~2023-11-13 19:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-31 16:20 Roland Mainz
2023-11-10 12:22 ` Roland Mainz
2023-11-13 19:39   ` Corinna Vinschen [this message]
2023-11-13 20:41     ` Roland Mainz
2023-11-15 12:57       ` Corinna Vinschen
2023-11-15 14:40         ` Corinna Vinschen
2023-11-13 22:52     ` Cedric Blancher

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