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Posted by Roger Abell [MVP] on February 5, 2008, 1:13 am
If you were Registered and logged in, you could reply and use other advanced thread options >> Long time no see.
>>
>> I am guessing that the application runs in the context of the
>> user running it. In that case, try using a grant to CreatorOwner
>> of Modify on the base folder and below plus a grant to Users
>> to create the new (that the grant from the CreatorOwner will
>> then set with modify for the one user). Just follow the model
>> used at the root of the system partition to allow Users to
>> create and use new folders.
>>
>> If the application uses persistent temp files and it is on a
>> multi-user machine, this of course will not work.
>> Otherwise there is the laborious approach you mention or
>> the equally effort intensive approach of setting a deny of
>> write on the existing files.
>> To my awareness there is no straightforward way to do this.
>
> Hi Roger. It's not that I didn't have questions in all this time. I
> guess I'm just taming my ambitions. :)
>
Then now you are ready for a welcome to Windows land. <g>
I seem to recall a similar wake-up after my being assigned
(from Unix land) to learn how NT would fit in our shop.
> What you suggest makes sense in general, but I don't find an attribute for
> just creating new files. The closest attribute is "Create Files / Write
> Data". And that sounds suspiciously like a permission to both create new
> files but also to modify existing ones. If it is not, then which
> attribute would give the ability to modify existing files? It's really a
> shame that Microsoft didn't make each part of that a separate attribute.
>
When you look in the advanced view the descriptions for the
individual ACEs have two parts separated by / char. On the
left is what the ACE means applied to a directory, on the right
what it means applied to a file. So, selection of that ACE and
in the dropbox set to This folder only allows only creating new
files in that directory (similarly applied to This folder and subs).
I think this could be seen as artifact of the era when designed
and all bits added up to significant cost, so something like a
double word is all that was allocated for all ACE flags, and
a couple of them for indication of applicability to objects and/or
container objects.
Roger
>
>>> What ACL on NTFS will give a group Read-Only access to files currently
>>> in the folder, but the ability to create and modify and delete new files
>>> in the folder?
>>>
>>> I have a badly behaved program that wants to write its TEMP files into
>>> its program installation folder. I would like to avoid the more
>>> permission Modify permission to the users of the application on all
>>> files in the folder including the application's binaries.
>>>
>>> One solution appears to be to give files currently in the folder the
>>> desired ACL and then break inheritance. Then give Modify access to the
>>> folder and all children. That isn't my first choice since later
>>> updates to the application will probably install new binaries, and this
>>> approach leaves those installed with Modify access inherited from the
>>> folder.
>>>
>>> --
>>> Will
>
>
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