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Re: Linux Distribution Recomendation
From: peter () devbox adamantix org (Peter Busser)
Date: Thu, 4 Mar 2004 10:44:05 +0100

Hi!

4.) By Sacrifice security for functionality I mean you can run something
like SElinux, Gentoo hardened or Adamantix which is harder to crack than 
just about anything but you will pay a price, things like PaX stack 
protection will give you a significant performance hit and break many 
applications. It should be noted that the 2.6 kernel will have SElinux 
built in,

I wonder how much of a performance hit you would call significant. Personally,
I do not notice a performance difference between a PaX kernel and a non-PaX
kernel. With the segmentation based protection, the performance impact is
estimated at 2%.

And then, even if you are right, and the performance impact is indeed
significant (let's say 20%). Then you just wait 6 months, for the same price
you will get a 20% faster CPU that will compensate for the impact. If you
cannot wait 6 months, you simply pay a hundred bucks more now. A small
investment that really pays off, once you realise how much a successful
breakin and the resulting downtime costs.

It should be noted that systems like RSBAC (which is used in Adamantix) and
SELinux are as secure as the kernel is. The recent list of Linux kernel exploits
show that this security is not exactly perfect. So don't expect miracles from
systems like that, even though some people would like to make you believe
otherwise.

Groetjes,
Peter Busser

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