Okay, I understand the file and directory permissions for linux pretty much. I'm above a newbie but am still learning quite a bit. My question is this, is there any other permssion module(s) out there for linux that can change the way users, files, and directories handle permissions?
The reason is this example. I have three groups:
Accounting
Developers
ProductUsers

And the directories:

Accounting
Development
Production
Documents

Now, I want Accounting to have rwx access to the Accounting directory, r access to the production directory and no access to the others.

Developers need to have rwx access to Development and Production but nothing else.

ProductUsers need to have rwx to Documents, rx access to Production and no access to the others.

My problem is that I have two groups (Developers and ProductUsers) that need different access to a single folder while denying access to all the others. Developers need rwx while ProductUsers only need rx, and then Accounting needs to have no access at all.

I know I am probably just missing something simple but any help on this would be appreciated. As an example I've used Novell (very lightly though) and it's permission setup is based on the user rather then the file and directory itself. Both have their pro's and con's (I do prefer the linux way but this hump is starting to really bug me)

P.S.
This is example is just that I don't actually use that but it illustrates my problem.

Thanks to you all.

You want ACL's. Theres different ACL versions.
ACL's seem to be in XFS, then there's:
Linux ACL's: http://acl.bestbits.at/
Linux Trustees: http://trustees.sourceforge.net/ and
RSBAC: http://www.rsbac.de/rsbac/ .

can some one mail me the ea+acl+nfs diff patches for the 2.4.21 or 2.4.22 kernel
from the bestbits..

seems like the site is down, and there isn't a mirror.. !
pleaze help me out, need version 0.8.60 - 0.8.64

collen@hermanjordan.nl

please use GOOGLE...

I did but there is no mirror site or other site who has it online !!