The FreeBSD project is finally, after much work, pleased to announce the availability of an official FreeBSD web based discussion forum. It is our hope that this forum will serve as a public support channel for FreeBSD users around the world and as a complement to our fine mailing lists.
You can register and start using [...]

From the Linux list undoubtedly more are using CentOS, but the remarkable fact is that this known 1% CentOS is the same amount as the 5 Windows supercomputers.
by Dag Wieers

Fedora 10 Cambridge is set to be released on November 25th with ton’s of new improvements and features. If you are just as impatient and would like to upgrade to the preview release, without downloading the ISO files, simply update the release files and go through your standard update procedure.
[root@infamous ~]# rpm -Uvh ftp://ftp.uci.edu/mirrors/fedora/linux/releases/test/10-Preview/Fedora/i386/os/Packages/fedora-release-9.93-1.noarch.rpm ftp://ftp.uci.edu/mirrors/fedora/linux/releases/test/10-Preview/Fedora/i386/os/Packages/fedora-release-notes-9.92-4.noarch.rpm
You [...]

Ivan Pepelnjak of IOS Hints posted an excellent article on installing and running Quagga on Fedora Core over at CT3 wiki. Installing and maintaining Quagga on Red Hat Enterprise Linux and CentOS is even easier since the package manager automatically generates users, init scripts, and provides an easy upgrade path for the future.
To install Quagga [...]

While configuring a new Gentoo Linux workstation I came across -march=native CFLAGS. Glancing over at GCC documentation, as of version 4.3.2 GCC is capable of automatically detecting what CPU you are using and setting appropriate optimization options.
32bit Users
CHOST=”i686-pc-linux-gnu”
CFLAGS=”-march=native -O2 -pipe”
CXXFLAGS=”${CFLAGS}”
64bit Users
CHOST=”x86_64-pc-linux-gnu”
CFLAGS=”-march=native -O2 -pipe”
CXXFLAGS=”${CFLAGS}”