samba - Feb 2002 - Windows changes file ownership & ACL's - any solution?

We have a problem with file security settings changing when
a file is edited by someone who is not the owner.

When the edited file is saved, ownership is transferred to the
person who edited the file.  Also, access control settings for the
file are reset to a default setting.

This is a real problem, since in some cases it means that the
original owner of the file no longer has permission to edit the file.

The problem occurs with many applications - Word, Excel, WordPro,
the Star Office editor, but not with Notepad or WordPad.
What seems to happen is that the applications create a copy of the
original document when opening the document.  This copy has the
ownership of the current user and that users default access controls.
When the file is then saved, the original file is deleted and the copy
saved under the original name (along with the different owner and access
properties)
This behaviour seems incorrect to me, but apparently is quite standard
among applications.

I was wondering if there is currently a way to override this behaviour
via Samba?
If anyone else has experienced these problems I would like to hear about it
(even if you didn't get a solution)
Any input is welcome.

(We are currently running Samba 2.0.6 on Solaris 8 servers
   with a mixture of Win NT, 2000 & XP clients.
   Planning on upgrading to latest Samba soon.)

thanks
-peter.




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It's probobly as you says a application problem. I have seen the same with 
NT4 servers

>From: <peter.a.bryant@mainroads.qld.gov.au>
>To: samba@lists.samba.org
>Subject: [Samba] Windows changes file ownership & ACL's - any
solution?
>Date: Mon, 18 Feb 2002 13:45:09 +1000
>
>
>
>We have a problem with file security settings changing when
>a file is edited by someone who is not the owner.
>
>When the edited file is saved, ownership is transferred to the
>person who edited the file.  Also, access control settings for the
>file are reset to a default setting.
>
>This is a real problem, since in some cases it means that the
>original owner of the file no longer has permission to edit the file.
>
>The problem occurs with many applications - Word, Excel, WordPro,
>the Star Office editor, but not with Notepad or WordPad.
>What seems to happen is that the applications create a copy of the
>original document when opening the document.  This copy has the
>ownership of the current user and that users default access controls.
>When the file is then saved, the original file is deleted and the copy
>saved under the original name (along with the different owner and access
>properties)
>This behaviour seems incorrect to me, but apparently is quite standard
>among applications.
>
>I was wondering if there is currently a way to override this behaviour
>via Samba?
>If anyone else has experienced these problems I would like to hear about it
>(even if you didn't get a solution)
>Any input is welcome.
>
>(We are currently running Samba 2.0.6 on Solaris 8 servers
>    with a mixture of Win NT, 2000 & XP clients.
>    Planning on upgrading to latest Samba soon.)
>
>thanks
>-peter.
>
>
>
>
>************************************************************
>Opinions contained in this e-mail do not necessarily reflect
>the opinions of the Queensland Department of Main Roads,
>Queensland Transport or National Transport Secretariat, or
>endorsed organisations utilising the same infrastructure.
>If you have received this electronic mail message in error,
>please immediately notify the sender and delete the message
>from your computer.
>************************************************************
>
>
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>To unsubscribe from this list go to the following URL and read the
>instructions:  http://lists.samba.org/mailman/listinfo/samba

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I'm running SuSE 7.0, Samba 2.2.2 w/Winbind, Pam, on 2.2.20 Kernel w/ACL 
Support.

I have just verified that I'm having this same problem.  Exactly.  I saved a
file on a Samba share, then I verified I was the owner.  I then went to a 
co-worker's computer and opened, edited, saved the file with M$ Word.  Now 
when I look at ownership, it is set to him as the owner and the permissions 
are reset.  When I follow the same steps using Notepad, the ownership and 
permissions aren't changed.

Here are the settings for my share:

[share]
        comment = Test Winbind Share
        path = /mnt/share
        create mask = 0777
        browseable = Yes
        writeable = yes

Here is the ACL for the file before I edited it with M$ Word.

linux10:/mnt/share # getfacl acltest.doc
# file: acltest.doc
# owner: DOMAIN+$ejwk
# group: DOMAIN+Domain Users
user::rwx
user:DOMAIN+I10201:rwx
group::rw-
mask::rwx
other::rw-

Here is the ACL for the file After I edited it with M$ Word.

linux10:/mnt/share # getfacl acltest.doc
# file: acltest.doc
# owner: DOMAIN+I10201
# group: DOMAIN+Domain Users
user::rwx
group::rw-
other::rw-

How do we work around this problem.  

Anyone have any ideas or having the same problems ??

TIA

Josh Konkol


On Sunday 17 February 2002 21:45, peter.a.bryant@mainroads.qld.gov.au
wrote:
> We have a problem with file security settings changing when
> a file is edited by someone who is not the owner.
>
> When the edited file is saved, ownership is transferred to the
> person who edited the file.  Also, access control settings for the
> file are reset to a default setting.
>
> This is a real problem, since in some cases it means that the
> original owner of the file no longer has permission to edit the file.
>
> The problem occurs with many applications - Word, Excel, WordPro,
> the Star Office editor, but not with Notepad or WordPad.
> What seems to happen is that the applications create a copy of the
> original document when opening the document.  This copy has the
> ownership of the current user and that users default access controls.
> When the file is then saved, the original file is deleted and the copy
> saved under the original name (along with the different owner and access
> properties)
> This behaviour seems incorrect to me, but apparently is quite standard
> among applications.
>
> I was wondering if there is currently a way to override this behaviour
> via Samba?
> If anyone else has experienced these problems I would like to hear about it
> (even if you didn't get a solution)
> Any input is welcome.
>
> (We are currently running Samba 2.0.6 on Solaris 8 servers
>    with a mixture of Win NT, 2000 & XP clients.
>    Planning on upgrading to latest Samba soon.)
>
> thanks
> -peter.
>
>
>
>
> ************************************************************
> Opinions contained in this e-mail do not necessarily reflect
> the opinions of the Queensland Department of Main Roads,
> Queensland Transport or National Transport Secretariat, or
> endorsed organisations utilising the same infrastructure.
> If you have received this electronic mail message in error,
> please immediately notify the sender and delete the message
> from your computer.
> ************************************************************
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I'm re-posting this only because I didn't get any responses before.  ANY
help
is very much appreciated. 

I'm running SuSE 7.0, Samba 2.2.2 w/Winbind, Pam, on 2.2.20 Kernel w/ACL 
Support.

I have just verified that I'm having this same problem.  Exactly.  I saved a
file on a Samba share, then I verified I was the owner.  I then went to a 
co-worker's computer and opened, edited, saved the file with M$ Word.  Now 
when I look at ownership, it is set to him as the owner and the permissions 
are reset.  When I follow the same steps using Notepad, the ownership and 
permissions aren't changed.

Here are the settings for my share:

[share]
        comment = Test Winbind Share
        path = /mnt/share
        create mask = 0777
        browseable = Yes
        writeable = yes

Here is the ACL for the file before I edited it with M$ Word.

linux10:/mnt/share # getfacl acltest.doc
# file: acltest.doc
# owner: DOMAIN+$ejwk
# group: DOMAIN+Domain Users
user::rwx
user:DOMAIN+I10201:rwx
group::rw-
mask::rwx
other::rw-

Here is the ACL for the file After I edited it with M$ Word.

linux10:/mnt/share # getfacl acltest.doc
# file: acltest.doc
# owner: DOMAIN+I10201
# group: DOMAIN+Domain Users
user::rwx
group::rw-
other::rw-

How do we work around this problem.  

Anyone have any ideas or having the same problems ??

TIA

Josh Konkol



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