Updated: 06/16/2017 by Computer Hope
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CentOS, which stands for the Community Enterprise Operating System, is a distribution of the Linux operating system based on RHEL (Red Hat Enterprise Linux). It runs on the x86 PAE (Physical Address Extension) and x86-64 architectures, and is currently the most widely-used Linux distribution for web servers.

CentOS uses the Red Hat source code base to create a product similar to RHEL. Unlike RHEL however, CentOS does not require a paid subscription. Product support is conducted entirely through community mailing lists, web forums, and chat rooms, and the developers are supported through donations and organizational sponsorships.

Computer abbreviations, Linux distribution, Operating system, Operating System terms, Web server