Red Hat and Fedora Linux
Red Hat Linux is currently the most popular Linux distribution. As a company, Red Hat provides software and services to implement and support professional and commercial Linux systems. Red Hat has split its Linux development into two lines: Red Hat Enterprise Linux and the Fedora Project. Red Hat Enterprise Linux features commercial enterprise products for servers and workstations, with controlled releases issued every two years or so. The Fedora Project is an Open Source initiative whose Fedora Core release will be issued every six months on average, incorporating the most recent development in Linux operating system features as well as supported applications. Red Hat freely distributes its Fedora version of Linux under the
GNU General Public License; the company generates income by providing professional-level support,consulting services, and training services. The Red Hat Certified Engineers (RHCE) training and certification program is designed to provide reliable and highly capable administrators and developers help to maintain and customize professional-level Red Hat systems.

Red Hat has forged software alliances with major companies like Oracle, IBM, Dell, and Sun. Currently, Red Hat provides several commercial products, known as Red Hat Enterprise Linux. These include the Red Hat Enterprise Advanced Server for intensive enterprise-level tasks; Red Hat Enterprise ES, which is a version of Linux designed for small businesses and networks; and Red Hat Enterprise Work Station. Red Hat also maintains for its customers the Red Hat Network, which provides automatic updating of the operating system and software packages on your system. You can also use the same Red Hat Network update tool to automatically update Fedora Linux. Specialized products include the Stronghold secureWeb
server, versions of Linux tailored for IBM and Itanium-based servers, and GNUPro development tools.Red Hat also maintains a strong commitment to Open Source Linux applications. Red Hat originated the RPM package system used on several distributions, which automatically installs and removes software packages. Red Hat is also providing much of the software development for the GNOME desktop, and it is a strong supporter of KDE. On Red Hat, GNOME and KDE are configured to appear the same, using a standardized interface called Bluecurve.