Red Hat Enterprise Linux, Linux Leader
We're Number TwoRed Hat Enterprise Linux is the leader and progenitor of RPM-based Linux distributions, and its bleeding-edge community offshoot Fedora is equally influential.
Fedora and Red Hat Enterprise Linux (RHEL) are the most influential distributions that use the Red Hat Package Manager. Although their influence lags behind that of Debian and Ubuntu, it is still strong enough that Fedora remains consistently in the top three most downloaded distributions on Distrowatch, and is the ultimate source of 50 (15%) of the 323 active distributions listed.
Fedora, the successor to Red Hat Linux and perhaps the most influential distribution prior to 2000, is consciously produced as the source for other distributions. In many of its releases, it is among the most innovative distros, releasing new software developed in co-operation with upstream projects. Development is more or less continuous within its Rawhide repository, with stable releases produced every six months.
However, RHEL is only the start of Fedora's influence. Just as Ubuntu has supported the development of sub-projects like Kubuntu and Xubuntu, so Fedora has encouraged spins and remixes -- customized releases of Fedora designed for...Read the rest of Bruce Byfield's Red Hat Enterprise Linux story at Datamation.com