CloudLinux is on a mission to make Linux secure, stable, and profitable. Its flagship product, CloudLinux OS, runs on more than 25,000 production servers today, and is recognized as the best OS for security and efficiency in a shared hosting environment. CloudLinux OS increases server density and enhances security, thus reducing operating costs, decreasing churn rates, and increasing profitability.

CloudLinux OS delivers these benefits by introducing the latest technologies specifically crafted for shared hosting into its kernel. Combine these features with all its tools and integrate them with major control panels and it becomes a must-have for any shared hosting provider.


CloudLinux OS employs a range of the latest techniques combined with a custom Linux kernel to achieve a multitude of benefits for shared hosting providers.

CloudLinux OS benefits

  • Isolates users from each other to avoid the “bad neighbor effect”
  • Prevents users from seeing configuration files and other private information
  • Allows end user to select PHP versions 4.4, 5.1, 5.2, 5.3, 5.4, 5.5 and 5.6
  • Gives the power to monitor and control limits such as CPU, IO, Memory, and others
  • Helps restrict and throttle MySQL database abusers
  • Compatible with all major control panels
  • Interchangeable with CentOS and RHEL.


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Introducing CloudLinux


Installation Instructions

Installing CloudLinux

Installing On New Servers:
You can download the latest CloudLinux ISO and use it to install CloudLinux on your server:

Installing On Servers With Existing OS:
Because each OS being replaced has its own, unique steps to install CloudLinux, please refer to the CloudLinux Documentation to see which steps would be required for your server: CloudLinux Documentation

Registering CloudLinux Server:
With our IP based license, use clnreg_ks command:

yum install rhn-setup --enablerepo=cloudlinux-base
/usr/sbin/clnreg_ks --force