Control Panel in short cPanel is a management tool based on web technologies for managing sites easily, with a clean interface. This is a non-free software available to a large number of distributions of Linux that support RPM, as SuSE, Fedora, Mandriva, etc. Is preliminary support for Debian, it should have requested to leave the beta for several years, and which has no support. A cPanel is accessed through ports 2082 and 2083 (for versions of SSL ). Authentication is HTTP or login page. It was designed to use commercial services web hosting , which is why the company does not offer licensed for personal use. However, the owners of nonprofit organizations, including educational institutions and charity can apply for a free license. It is available only for operating systems based on Linux, but versions for Solaris , Microsoft Windows and Mac OS X are developing.