Red Hat Enterprise Linux

Red Hat Enterprise Linux (RHEL) is a Linux distribution created and maintained by the Red Hat company.

RHEL itself is free of use. However, technical support from Red Hat requires payment.

Versions

 * Red Hat Enterprise Linux 2.1
 * Red Hat Enterprise Linux 3
 * Red Hat Enterprise Linux 4
 * Red Hat Enterprise Linux 5
 * Red Hat Enterprise Linux 6
 * Red Hat Enterprise Linux 7
 * Red Hat Enterprise Linux 8