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Date: Tue, 7 Dec 2010 10:51:10 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
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Subject: Re: Permissions on Windows 2008
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On Dec  7 05:09, Bryan Slatner wrote:
> I've just installed Cygwin on a Windows 2008 Standard server with SP2.
> 
> I'm noticing two strange behaviors with files that I upload via SFTP (or 
> SCP, I'm not actually sure which protocol WinSCP uses by default).
> 
> First, the ACL list on the uploaded files contains an entry for 
> "ServerName\None", which is a non-existent account as best I can tell.

No, it's an existing account.  After all, if it wouldn't exist, how
would Windows be able to resolve the SID into a name?
If the receiving account on the target machine is not a domain account,
then "None" is its default Windows primary group, the local group with
RID 513.

> Second, it "shares" the files and directories using the Windows 2008
> file sharing feature that allows you to share files with other users
> on the same machine. It shares the file with "Everyone" and 
> "ServerName\None".

As Jeremy already noted, Cygwin emulates POSIX permissions.  The default
POSIX permissions are 0644.  Well, actually it depends on your umask and
your usage of the scp -p option, but let's assume the default settings
are used.  This leads to the following ACL:

  ServerName\User    rw-
  ServerName\None    r--
  Everyone           r--

Note that Windows Explorer only erroneously treats such files as
"shared" if they are in your own user folder.  If you scp the files
into some other folder (like, say, /home/user within your Cygwin folder
hirarchy, this won't occur anymore.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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