[K12OSN] Permissions for students and teachers
Les Mikesell
les at futuresource.com
Wed Apr 9 12:53:47 UTC 2008
Almquist Burke wrote:
>
> It's been my experience that the only real limitations with UNIX
> permissions is when you want to have one group to have read-write
> access, one group to have read only access, and everyone else not to
> have any access at all. This is the only thing you really can't do in
> UNIX. The good news is that this scenario isn't terribly very common if
> you really think about it.
If this applies to everything in a directory, make the directory and
files group rw and other r (+x for the directory) owned by the group
with write access, and make a directory above that group rx for the
group with read access, no access for other. Include all the members of
the group with write access in the one with read access. Only the
combined group members can get through the upper directory, and the ones
that aren't in the rw group will be constrained by 'other' permissions
on the lower directory/files.
--
Les Mikesell
lesmikesell at gmail.com
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