|Well, there are several popular flavors
of BSD derived UNIX... some being (keep in mind that some of these
primary design principles overlap, e.g. OpenBSD is also available
on different host architectures, however this is not the primary design
Most of my personal experience comes from OpenBSD, I find it somewhat
slow, however the tradeoff in security is usually worth it. I believe
their going through some system level optimizations in the near future.
OpenSSH is a
byproduct of the OpenBSD project, due to the recent ssh1.x remote
exploit scare (FreeBSD and anybody that manually linked that RSAREF
lib are supposedly vurn, however there is still an ongoing debate),
this has gained some momentum.
The Ultra Secure variant.
The IA-32 optimized variant.
3. NetBSD, The