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Re: POSIX


From: Alfred M\. Szmidt
Subject: Re: POSIX
Date: Wed, 26 Oct 2005 17:15:55 +0200

   That would be what a capability system is all about.  You only give
   the rights away that the process actually needs, not your full user
   rights.  I'm glad you like it. :-)

I never claimed that I disliked it.

   > Such paranoia isn't useful for a multi user system, or a single
   > user system.  All it is is a academic excersise in `intellectual
   > mastrubation'.

   You may think so.  But what if it's possible?  It would be great to
   work on such a system, wouldn't it?

I don't think it would be great (or as great as it is purported to
be), it is very seldom you need such flexibility.  I seldom use the
current classic UID based scheme.  It is a cute feature, but requires
alot of work to get done right, and the end result isn't that immensly
useful IMHO.

   Compare that to the current situation on GNU/Linux, where it can
   ruin all your personal files.

How often has this happened to you? Or anyone?  The worst thing that
ever happened to me was doing `rm -rf ~/' by accident, and such a
capability system won't help with that unless it has a built in AI
that can tell if removing the home directory is done by accident or on
purpose.




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