Some hosting companies rely on CentOS working together with the cPanel. * CentOS can be used as an X Window based desktop but, like RHEL, is targeted primarily at the server market. Each may be used to download and install both additional packages and their dependencies, and also to obtain and apply periodic and special (security) updates from repositories on the CentOS Mirror Network. * CentOS preferred software updating tool is based on yum, although support for use of an up2date variant exists. There are other distributions derived from RHELs source as well, but they have not attained the surrounding community which CentOS has built CentOS is generally the one most current with Red Hats changes. CentOS developers use that source code to create a final product which is very similar to RHEL and freely available for download and use by the public, but not maintained or supported by Red Hat. As required, Red Hat releases all source code for the product publicly under the terms of the GNU General Public License and other licenses. * RHEL is largely composed of free and open-source software but is made available in a usable, binary form (such as on CD-ROM or DVD-ROM) only to paid subscribers. CentOS stands for Community ENTerprise Operating System. Additional software archives hold later versions of such packages, along with other Free and Open Source Software RPM-based packaging. This rebuild project strives to be 100% binary compatible with the upstream product, and within its mainline and updates, to not vary from that goal. * CentOS is a freely available Linux distribution which is based on Red Hats commercial Red Hat Enterprise Linux (RHEL) product. * The list of Debian releases, their code names and release dates include: * In addition, a stable release gets minor updates (called point releases ) marked for like 3.0r1. When a new version is released, the previous stable is labeled old stable currently, this is version 3.0 named woody. * As of February 2007, the latest stable release is version 3.1, code name sarge. The latest Yum still hasn’t caught up to where apt was 5 years ago. OTOH, Red Hats package manager (Yum) is still a rather new and unsophisticated project. * APT has been working rather well for nearly a decade. Here again, Debian led the way and gave birth to APT, the Advanced Packaging Tool, which has since been ported by Conectiva for use with rpm and has been adopted by some other distributions. They needed a rapid, practical, and efficient way to install packages that would manage dependencies automatically and take care of their configuration files while upgrading. * A new dilemma quickly took hold of the minds of the makers of GNU/Linux. Thus the famous `package first came into being on GNU/Linux, a while before Red Hat decided to create their own `rpmsystem. When Debian was created, it was deemed necessary that the system includes a method of managing the packages installed on the machine. Users had to compile each program that they wanted to use on their GNU/Linux systems. * Debian is supported by donations through Software in the Public Interest, Inc., a non-profit umbrella organization for free software projects. These practices afford easy upgrades between releases without rebooting and easy automated installation and removal of packages. * Debian is also known for its package management system (especially APT), strict policies regarding the quality of its packages and releases, and for its open development and testing process. Debian GNU/Linux is the basis for several other distributions, including Knoppix, Linspire, and Ubuntu. * Debian is known for its adherence to the Unix and free software philosophies and for its abundance of options – the current release includes over fifteen thousand software packages for eleven computer architectures ranging from the ARM architecture commonly found in embedded systems and the IBM eServer zSeries mainframe architecture to the more common Intel x86 and AMD x86-64 architectures found in modern personal computers. The projects primary focus, Debian GNU/Linux, is a popular Linux distribution. * Debian is a project-based around the development of a free, complete operating system based on the work of the GNU Project through the collaboration of volunteers from around the world.
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