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For cPanel & WHM version 11.50


To use Red Hat Enterprise Linux (RHEL) as your server's operating system (OS), you may need to subscribe to specific RHEL channels before installation.

RHEL 6 Optional RPMs channel


  • Before you install cPanel & WHM on an RHEL 6 server, you must subscribe the server to the Red Hat Enterprise Linux 6 Server - Optional RPMs channel.
  • If your server is on the Red Hat Network and uses the satellite subscription method, you must uninstall the subscription-manager package before you install cPanel & WHM.

To subscribe to the Red Hat Enterprise Linux 6 Server - Optional RPMs channel, run the following command:

subscription-manager repos --enable rhel-6-server-optional-rpms


You may need to subscribe to additional channels to maintain all of the packages that cPanel & WHM requires. 

Install Red Hat Enterprise Linux

To install Red Hat Enterprise Linux, perform the following steps:

  1. Download the Red Hat Enterprise Linux ISO.
  2. Burn the ISO to CD or DVD, and install it on your server.


    After you place the OS installation disc in your server, a prompt will ask you to test the disc before you begin installation. We strongly recommend that you test the disc before you proceed. This test saves time if the disc is unreadable.

  3. To register the server with the Red Hat network, run the following command:



    You must register the server before you install cPanel & WHM or cPanel DNSONLY. If you do not register the server, the installation will fail.