System Requirements

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Requirements for Installing cPanel & WHM 11.30

We offer support for new installations on the operating systems and architectures mentioned below.

Hardware Requirements

Component Minimum Requirement
Processor 266 MHz processor
Memory 512 MB RAM (1 GB recommended when hosting many accounts)
Disk Space 10GB hard disk

Compatible Software

Supported Virtual Environments [1] [2]
KVM
Linux-VServer
Microsoft Server® 2008 Hyper-V [3]
OpenVZ (stable releases only)
Oracle VM VirtualBox, VirtualBox OSE
Virtuozzo™
VMware® Server, VMware® ESX Server
Xen, XenEnterprise™, XenExpress™, XenServer™
Supported Operating Systems
(i386 and x86-64 ONLY)
CentOS versions 4.x, 5.x, 6.x
Red Hat® Enterprise Linux® versions 4.x, 5.x, 6.x
FreeBSD®-RELEASE versions 7.3, 7.4, 8.0, 8.1, 8.2 [4]
CloudLinux 5.x, 6.x [5]
[1] cPanel does not support VPS licenses for the FreeBSD operating system.
[2] cPanel does not support 32-bit Virtual Environments that run on a 64-bit host kernel.
[3] cPanel supports the drivers and configurations provided by Microsoft.
[4] Servers running FreeBSD with cPanel & WHM will not be able to upgrade beyond cPanel & WHM version 11.30. Read our Operating System End of Life Policy for more details.
[5] CloudLinux is not compatible with OpenVZ or Virtuozzo. CloudLinux 6.x is compatible with cPanel & WHM 11.30.4 or later.

Important Facts

Please keep these facts in mind when you install cPanel & WHM:

  • We strongly recommend a system that exceeds the minimum requirements. This is especially true if you plan to host a large number of domains and accounts.
  • We strongly recommend using CentOS or Red Hat® Enterprise Linux® if you are not an experienced FreeBSD administrator.
  • You should install a minimal version of the operating system.  All services that cPanel requires will automatically be installed during the cPanel & WHM installation process.  Installing services prior to the installation of cPanel & WHM will cause compatibility problems.
  • Because cPanel is designed for commercial hosting, we only license publicly visible, static IP addresses. We do not license dynamic, sticky, or internal IPs.
  • cPanel does not support NAT.

Installation Instructions

To install cPanel & WHM on CentOS:

  1. Download a free CentOS DVD ISO. To use this ISO, you must burn the image to a DVD. Then, insert the DVD into the server and turn it on.
  2. Upon its first reboot, the ISO will install cPanel and WHM in the background.
  3. For more details, read our documentation on Installing cPanel and WHM. If you have questions, please contact our sales team.

How long will cPanel & WHM support my chosen operating system?
Operating System cPanel End of Life Date
CentOS 3.x, RedHat Enterprise Linux 3.x April 30, 2011
CentOS 4.x, RedHat Enterprise Linux 4.x August 31, 2012
CentOS 5.x, RedHat Enterprise Linux 5.x, CloudLinux 5.x September 30, 2014
CentOS 6.x, RedHat Enterprise Linux 6.x, CloudLinux 6.x April 30, 2018
FreeBSD 7.3 September 30, 2012
FreeBSD 7.4 August 31, 2013
FreeBSD 8.0 May 31, 2011
FreeBSD 8.1 January 31, 2013
FreeBSD 8.2 August 31, 2012

(For more information about FreeBSD End of Life dates, see the FreeBSD Security Information page.)

Read our Operating System End of Life Policy for more details.

How long will this release of cPanel & WHM receive support?

The 11.30 release of cPanel & WHM officially introduces the Long-Term Support initiative. To learn more, read our Long-Term Support document.

cPanel & WHM Version Approximate Release Date Anticipated End of Life*
11.30 July 13, 2011 Jan 13, 2013

* cPanel & WHM releases which have reached End of Life:

  • Are unavailable for installation
  • Will no longer receive fixes or patches from cPanel, Inc.