CentOS is one of the famous alternative for Red Hat Enterprise Linux Server since the packages/softwares with Centos are derived from the sources of Red Hat Enterprise Linux (RHEL). It is also abbreviated as Community Enterprise Operating System. This platform only provides support via the community comprising but not limited to system administrators, network administrators, managers, core Linux contributors, and Linux enthusiasts from around the world. Currently CentOS 7 onwards, only the X86-64 architecture is supported.

Following are the important repositories provided the CentOS project for software packages and updates.
  1. CentOS Extras
  2. CentOSPlus
  3. CentOS-Testing
  4. CentOS-Fasttrack
  5. CR(Continuous Release)
  6. debuginfo
  7. contrib

Basic System Administration and its relevant content

Advanced System Administration and its relevant content