Step 2: System Requirements for cPanel & WHM 11.40 Installation
How to choose a server
When you choose a server, you should consider these factors:
- How many sites you plan to host. For example, if your server will host many websites, each with its own set of email addresses and databases, the server will require more processing power, disk space, and RAM.
- What kind of web hosting you plan to do. While cPanel & WHM will run on the minimum requirements below, the server will need more processing power, disk space, and RAM if you plan to host videos, music, or high-volume applications like forums.
We offer support for new installations on the operating systems and architectures mentioned below. (Please also read our Important facts to understand before installing
A 64-bit operating system will use more memory than a 32-bit system. This should be considered when you choose a server.
|| Minimum Requirement
|| 266 MHz
|| 512 MB RAM (1 GB recommended when hosting many accounts)
| Disk Space
|| 20 GB hard disk (40 GB is recommended)
The above requirements are the minimum
requirements. A server that meets only
these requirements may not function properly. This may especially take place if the server runs various demanding functions. Some known issues are unsuccessful mail deliveries and websites not serving when called.
| Supported Virtual Environments 
| Microsoft Server® 2008 Hyper-V 
| 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 5.x and 6.x
| Red Hat® Enterprise Linux® versions 5.x and 6.x
| CloudLinux 5.x 
| Virtual Environments Detected and Reported as Functional
| SmartOS 
cPanel does not support 32-bit Virtual Environments that run on a 64-bit host kernel.
cPanel supports the drivers and configurations provided by Microsoft.
CloudLinux is not compatible with OpenVZ or Virtuozzo. cPanel does not support using Xen PV (paravirtualization) with CloudLinux.
For SmartOS to be detected, you must use cPanel & WHM version 11.36.1 or higher.
If you have questions, please contact our sales team
How long will cPanel & WHM support my operating system?
Read our Operating System End of Life Policy
How long will this release of cPanel & WHM receive support?
The 11.30 release of cPanel & WHM officially introduced the Long-Term Support initiative. To learn more, read our Long-Term Support
| cPanel & WHM Version
|| Approximate Release Date
|| Anticipated End of Life*
| 11.32 (EOL)
|| February 20, 2012
|| August 20, 2013
|| October 15, 2012
|| October 2013
|| January 25, 2013
|| January 2014
|| April 2013
|| April 2014
|| October 2013
|| October 2014
cPanel & WHM releases which have reached End of Life
- Are unavailable for installation
- Will no longer receive fixes or patches from cPanel, Inc.
Topic revision: r40 - 28 Oct 2013 - 18:50:08 - Main.JenniferDoubrava