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From:	"Dave Korn" <dave DOT korn AT artimi DOT com>
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Subject:	RE: directory listing differences
Date:	Thu, 7 Jun 2007 17:03:23 +0100
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On 07 June 2007 16:46, Joseph Michaud wrote:


> One interesting tidbit is that if, from the bash shell, I invoke
> a Windows CMD shell, then that CMD shell similarly doesn't see the
> file.
> 
> I conclude from this that somehow the bash shell doesn't have
> some appropriate privilege and that bash's children similarly
> lack this privilege, but I can't figure out why two files with
> seemingly similar permissions are different.

  To processes with different access tokens, "seemingly" similar permissions
aren't.  As a simple example, consider a file with "rwxr-x---" perms.  Your
access perms will be very different if you are logged in as the user who owns
the file compared with if you log in as a different user in the file's group
as compared to if you log in as another user who isn't in that group at
all....
 
> I note that I see this problem on a Windows 2003 Compute Cluster Server
> domain controller head node (and its compute nodes) but not
> not on a Windows XP 64 laptop.  (Perhaps something with domain
> controller security policy is affecting this...)

  Almost certainly so.
 
> Any tips on what other info I can look for would help.

  Use Process Explorer to look at the tokens of the two different processes
(cmd launched by itself, cmd launched from bash) and see what's different.


    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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