Thanks for replying. I did try out Adios last week. Its perfect to try out SELinux because first of all its a Live CD and the next good thing is it comes pre-configured with UML; therefore you could load a SELinux kernel in UML and run the normal 2.4.x kernel (SELinux off) as your basic kernel. This way I think you won't screw up your box much
esp people like me who always screw up something or the other very often trying to learn something
Btw, do you see any of these security-enhanced kernels becoming a standard soon? I heard FC3 has SELinux turned ON by default. Is anybody else adopting it too? Debian? I've never used Debian before; but I hear a lot about it being very stable.