Is it possible to configure process hiding for certain user groups under a linux system?
For example: Users from group X should not see processes owned by users from group Y in ps/top or under /proc.
Is it possible to configure such a setup with SELinux?
(I vaguely remember a similar feature in the funny grsecurity patch set - but IIRC, it was more generic - and besides, I want to configure a stock linux distro without having to maintain a custom kernel.)
Edit: For better illustration, Solaris 10 has a similar feature. The example is not that generic, but one can configure that a user or some users can only see information of their own processes in ps etc.