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Date: Thu, 19 Apr 2007 16:59:54 -0400
From: "Larry Hall (Cygwin)" <reply-to-list-only-lh AT cygwin DOT com>
Reply-To: cygwin AT cygwin DOT com
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To: cygwin AT cygwin DOT com
Subject: Re: CHMOD appears to work, but something fails silently.
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The Gavitron wrote:
> Hi Everyone,
> 
> I have been using cygwin since the nineties, but have recently
> encountered something that lead me to join this list, and ask for
> help:
> 
> I have a windows 2000 machine, with cygwin (obviously.)  The domain
> this machine belongs to was recently changed.  (Network  upgrades
> etc.)  Last night, I upgraded Cygwin to the current stable release,
> then I redid mkpasswd/mkgroup. (since Xwindows broke after my SIDs
> changed.  It's fixed now.)
> 
> While remaking /etc/passwd, I realized that I really should use my
> \\server\home\username  directory as my home dir, instead of
> c:\docume~1\username.  So I moved all my 'dot' files across, and life
> was good.
> 
> The problem I am now having is this: I was faced with the *expected*
> issue of loose permissions on .ssh/ -- no worries, I chmod'd the right
> permissions onto the . files, and tried again.  Still nothing.
> Further testing has shown that I cannot chmod any files on my  network
> drive.  A sample example: (Note that / is local, and ~ is a network
> share.)
> 
> [12:24 ~] cd /
> [12:24 /] touch foo
> [12:24 /] ls -l foo
> -rw-r--r-- 1 <myuser> Domain Users 0 Apr 19 12:24 foo
> [12:24 ~] chmod -v +x foo
> mode of `foo' changed to 0755 (rwxr-xr-x)
> [12:24 /] ls -l foo
> -rwxr-xr-x 1 <myuser>  Domain Users 0 Apr 19 12:24 foo*
> [12:24 /] rm foo
> [12:24 /] cd ~
> [12:25 ~] touch foo
> [12:25 ~] ls -l foo
> -rw-r--r-- 1 <myuser>  Domain Users 0 Apr 19 12:25 foo
> [12:25 ~] chmod -v +x foo
> mode of `foo' changed to 0755 (rwxr-xr-x)
> [12:25 ~] ls -l foo
> -rw-r--r-- 1  <myuser> Domain Users 0 Apr 19 12:25 foo
> [12:25 ~]  rm foo
> 
> I have googled, read the FAQ, and searched the mailing list.  The most
> relevant info I could find was this gem:
> http://sourceware.org/ml/cygwin/2003-04/msg01350.html
> but the FAQ linked to no longer exists...


Drat!  I thought we had avoided that problem.  Oh well. :-(


> I should also point out that before running the test above, I ensured
> that my Windows account is the owner of the entire home/username
> directory.  CACLS returns the following:
> 
> [12:49 ~] CACLS .
> \\mydomain.local\home\myusername BUILTIN\Administrators:(OI)(CI)F
>                                     CREATOR OWNER:(OI)(CI)(IO)F
>                                     MYDOMAIN\myusername:(OI)(CI)F
>                                     NT AUTHORITY\SYSTEM:(OI)(CI)F
> 
> 
> Is there anything I have overlooked?  Maybe this is a known 'feature'
> of chmod over CIFS?

Yes.  See 'smbntsec' here:

<http://cygwin.com/cygwin-ug-net/using-cygwinenv.html>

-- 
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

_____________________________________________________________________

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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