Multiple user groups on a file

Bevan C. Bennett bevan at fulcrummicro.com
Wed Feb 25 19:08:13 UTC 2004


Joolz wrote:
>>[Rui Miguel Seabra schreef op 25-02-2004 15:12 +0000]
>>
>>On Wed, 2004-02-25 at 16:08 +0100, Linux4life wrote:
>>
>>>is it possible have several different groups with different
>>>privileges on a file on ext3 filesystem?
>>
>>Only if you have extended acls like those brought by SELinux, which
>>Fedora Core 2 will include.
> 
> 
> This is _great_ news. I've been administering netware systems since
> 1993 or something. Since the last years I have been using Linux more
> and more, but the very limited user and group rights implementations
> on the traditional Linux filesystems compared to netware are... well,
> bad. :-(
> 
> I knew there was something like ACL but I didn't feel like tweaking,
> I'm not much of a kernel hacker I'm afraid. But IMO getting this as a
> standard in Linux distro's is a great step forward.
> 
> I had my doubts when I went from RH9 to FC1, but now I've heard this
> I'm glad I have made the step (even though I will have to wait until
> FC2).
> 
> So, thank you Fedora community!!!
> 

Even better is that NFSv4 (allegedly coming in 2.6) will support them as 
well! (as does my Network Appliance fileserver)

We have near-constant group permission issues due to users with mis-set 
umasks, tar ignoring the group directory sticky bit, and other such 
complications.  I -almost- switched our central filesystem to CIFS 
security a couple of times for the ability to say "this directory and 
everything under it is writeable by this group, and readable by these 
other two groups".

It's a very very very good thing.





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