Does Linux support multi-user?
Posted Jul 16, 2011 18:09 UTC (Sat) by kleptog
In reply to: Does Linux support multi-user?
Parent article: Reactive vs. pro-active kernel security
A user should not see who else has processes running and what they are. A user should not see who has a home directory.
I don't see how this follows. I've worked on shared systems and being able to see other people's processes and see who has a home directory just isn't an issue. Achieving that would require far more invasive changes for, as far as I can see, zero benefit.
If you want that kind of isolation, use VMs. But for shared systems you mostly just need to prevent people from interfering with each others work. Being able to see what processes are being run isn't often an issue.
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