CloudLinux OS

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CloudLinux OS
DeveloperCloudLinux, Inc.
OS familyLinux (Unix-like)
Working stateCurrent
Initial releaseJanuary 2010; 16 years ago
Available inEnglish
Kernel typeMonolithic kernel
Official websitecloudlinux.com Edit this at Wikidata

CloudLinux OS is a commercial Linux distribution marketed to shared hosting providers. It is developed by software company CloudLinux, Inc.[1] CloudLinux OS is based on the CentOS operating system; it uses the OpenVZ kernel and the RPM package manager.[2][3]

CloudLinux OS provides a modified kernel based on the OpenVZ kernel. The main feature is the Lightweight Virtual Environment (LVE) – a separate environment with its own CPU, memory, IO, IOPS, number of processes and other limits.[4] Switching to CloudLinux OS is performed by a provided cldeploy script which installs its kernel, switches yum repositories and installs basic packages to allow LVE to work. After installation the server requires rebooting to load the newly installed kernel. CloudLinux OS does not modify existing packages, so it is possible to boot the previous kernel in the regular way.[5][6][7]

CloudLinux released the first beta for AlmaLinux OS, a free operating system intended as a substitute for CentOS, on February 1, 2021. On March 30, 2021, the same day as the first stable release, CloudLinux transferred the responsibility for development and governance of the project to the AlmaLinux OS Foundation. CloudLinux promised $1 million in annual funding to the project, but does not own the project any more.[8]

Hosting providers using CloudLinux often offer the WordPress content management system to their customers. In 2022, CloudLinux developed the AccelerateWP suite of tools to diagnose slow WordPress websites and improve their performance, largely through caching.[9]

  1. ^ "CloudLinux to Demonstrate I/O Limits". Softpedia.com. May 17, 2012. Retrieved September 19, 2015.
  2. ^ "CloudLinux Launches KuberDock Public Beta". WBOC-TV. Retrieved September 19, 2015.[dead link]
  3. ^ "CloudLinux Releases MySQL Governor". The Hosting News. Archived from the original on August 18, 2015. Retrieved September 22, 2015.
  4. ^ "CloudLinux Releases New Inode Limits Feature for cPanel". TheWhir.com. Retrieved September 19, 2015.
  5. ^ "CloudLinux OS – mariaż pingwina z chmurą w imię hostingu". Newsweek Polska. Archived from the original on September 25, 2015. Retrieved September 19, 2015.
  6. ^ "Web Hosting Centric OS". Web Hosting Magazine. Archived from the original on May 23, 2015. Retrieved September 22, 2015.
  7. ^ "Inside CloudLinux's New Linux-Based Cloud OS". TheWhir.com. Retrieved September 22, 2015.
  8. ^ "CloudLinux Establishes AlmaLinux Open Source Foundation, Launches First Stable Release". Business Wire. March 30, 2021. Retrieved June 28, 2023.
  9. ^ "CloudLinux Announces Release of Production Ready Version of AccelerateWP". Business Wire. October 25, 2022. Archived from the original on September 14, 2025. Retrieved January 31, 2026.