The cAos foundation produces yet another GNU/Linux distro. What’s so special about this one? Their project, CentOS, is a free build from Red Hat Enterprise Linux SRPMS. (So CentOS-3 is basically a free clone of RHEL 3 from the same source code.) They have also released Centos3.1 which is repackaged to include security updates, eliminating the need to apply as many patches to the vanilla distro.The big bonus is that you get a system compatable with RHEL without the costs (unless you choose to pay someone for support) and with the longer enterprise release cycle versus Fedora’s more rapid release cycle.
For more details on the cAos social contract, visit here: http://www.centos.org/index.php?option=displaypage&Itemid=50&op=page&SubMenu=