LiteSpeed Integration with WHM: How to Set It Up

LiteSpeed Overview

LiteSpeed is a web server and application server software. Developed as an alternative to the Apache web server, LiteSpeed aims to enhance the performance and provide a faster web server experience.

Key features of LiteSpeed include:

1. High Performance: LiteSpeed is built on an optimized codebase and utilizes a unique architecture, resulting in faster and more efficient performance. It is particularly suitable for high-traffic websites.
2. Apache Compatibility: LiteSpeed is compatible with Apache HTTP Server. It can use Apache’s configuration files, making it easy to transition from Apache, and is module-compatible.
3. LSAPI Protocol: LiteSpeed employs a proprietary LSAPI (LiteSpeed API) protocol. This protocol accelerates communication between the web server and application server, offering performance advantages.
4. Event-Driven Architecture: LiteSpeed uses an event-driven architecture, enabling more concurrent connections and lower memory consumption.
5. Cache and Optimization Features: LiteSpeed offers various caching and optimization features, including cache management, gzip compression, and support for HTTP/2 and the QUIC protocol.
6. Security Enhancements: LiteSpeed includes various security features such as mod_security compatibility and protection against DDoS attacks.
7. cPanel and Plesk Integration: LiteSpeed can be integrated with popular hosting control panels like cPanel and Plesk.

LiteSpeed is often chosen for performance-centric requirements and high-traffic websites.

Installing LiteSpeed on WHM:

1. Obtaining a LiteSpeed License:
   • Purchase a LiteSpeed license from the Official LiteSpeed Website.
2. Installing the LiteSpeed WHM Plugin:

   • cd /usr/src
     wget http://www.litespeedtech.com/packages/cpanel/lsws_whm_plugin_install.sh
     chmod 700 lsws_whm_plugin_install.sh
     ./lsws_whm_plugin_install.sh
     rm -f lsws_whm_plugin_install.sh

3. LiteSpeed Installation:
   • Navigate to the “LiteSpeed Web Server” tab in WHM.
   • Click on the “Install LiteSpeed Web Server” option.
   • Enter your license key and click the “Install” button.
4. Accessing the LiteSpeed Management Panel:
   • Once LiteSpeed installation is complete, access the LiteSpeed Management Panel by clicking on the “LiteSpeed WebAdmin Console” link in the “LiteSpeed Web Server” tab.
5. Configuring LiteSpeed Settings:
   • Use the LiteSpeed Management Panel to configure general settings and server configurations. These settings include performance-enhancing features such as caching, gzip compression, and HTTP/2.
6. Integration with Apache (Optional):
   • In the “LiteSpeed Web Server” tab in WHM, you can use the “Switch to LiteSpeed from Apache” option to replace Apache with LiteSpeed.
7. Restarting the LiteSpeed Service:
   • To apply the changes, restart the LiteSpeed service:

     service lsws restart

These steps cover the installation of LiteSpeed on WHM. For more details and specific configurations, it is recommended to refer to the official documentation provided by LiteSpeed and WHM.

If you want to delete it later, just run the command below.

sh /usr/local/cpanel/whostmgr/docroot/cgi/lsws/lsws_whm_plugin_uninstall.sh