Once, long ago, I did a distributed computing project course where Itried to speed up a drawing program by moving its expensive floatingpoint calculations (I believe it needed to calculate square roots forsomething) to a machine with a much faster CPU and floating point. Weused Sun's RPC/XDR for this because it was both a great match for whatwe were doing and the obvious choice at the time, among other reasons.

Rather to our surprise the drawing program just didn't get much faster

I'm no fan of SELinux, but in stumbling over it a few times I've come tosome theories about why I don't think it works. One of them, perhaps themost important one, is this:

Extra Unix security stuff needs to be simple and explicit .

Extra Unix security stuff needs to be explicit because the effectivealternative is invisibility, since Unix already has one security systemand most people aren't going to do very well remembering a secondinvisible one.

(A great deal