Learn how to install OpenLiteSpeed on Debian 12.11 with this simple guide. Our LiteSpeed Support team is ready to assist you. 

Install OpenLiteSpeed on Debian 12.11

OpenLiteSpeed is a quick, open-source web server that is easy to set up and has excellent performance. Hosting dynamic websites and apps is an ideal choice because it offers contemporary features like HTTP/3, SSL, and caching.

Introduction to OpenLiteSpeed

The web server OpenLiteSpeed is free and open-source, with performance and scalability as its primary goals. Important technologies like cache, HTTP/2, SSL, and Apache rewrite rules are supported. It is simple to set up to effectively manage websites with a lot of traffic. It is an effective choice for applications requiring a server solution that is both lightweight and quick.

Applications of OpenLiteSpeed

• For websites that require quick content loading that were created using PHP, Python, or Ruby.Select WordPress or Joomla one-click setups from hosting platforms.
• Drive websites powered by WordPress, Joomla, or Drupal with unparalleled speed and efficiency.
• To provide a online projects a free test run, before going public
• To control moderate to high traffic levels without causing your website to lag.
• To minimize server use and speed up page loads by utilizing built-in features like LSCache.
• Use WSGI and LSAPI to run your Python-based web apps.
• Install business intelligence software without requiring additional servers.
• To improve the consumer experience and boost online stores’ performance.
• Key Features of OpenLiteSpeed

Read our expert article to learn how to exclude specific URLs from LiteSpeed Cache and fine-tune your site’s performance.

OpenLiteSpeed vs LiteSpeed

Here is the key difference between OpenLiteSpeed & LiteSpeed:

OpenLiteSpeed	LiteSpeed
Free and open-source (GPL license) Core web server features with HTTP/3 and scalability Ideal for smaller sites Community-based forums and documentation Basic caching options DDoS Protection is limited Best suited for personal or small business websites	Commercial (requires paid license) Advanced features including enhanced DDoS protection, SSL/TLS, and superior caching High-traffic sites providing enterprise-level performance Official technical support from LiteSpeed Advanced caching with LiteSpeed Cache Built-in advanced DDoS protection Best for large-scale, high-traffic applications

System Requirements

OpenLiteSpeed requires a Linux machine that has:

• OS: Compatible with Ubuntu 18.04+, FreeBSD 12.04+, Debian 10+, and CentOS 7+
• Kernel: At least version 3.0
• CPU: An ARM or 64-bit Intel processor
• RAM: 4GB or more is more appropriate, although at least 32MB is acceptable.
• Disk: Requires at least 300MB, with 20GB recommended.
• Internet: A steady and quick connection
• Ports: Open SSH port 22, WebAdmin port 7080, HTTP/HTTPS ports 80 and 443, and UDP port 443.
• Access: To install it, you need complete root access. Domain: Required for website hosting
• Firewall: For optimal operation, the aforementioned ports should be allowed.

How to Install OpenLiteSpeed on Debian 12.11

Follow these step-by-step guide for a seamless installation of OpenLiteSpeed on Debian 12.11:

Step 1: To add the OpenLiteSpeed repository, run this command:

wget -O - https://repo.litespeed.sh | sudo bash

Step 2: Update packages and install the server:

sudo apt update -y

sudo apt install openlitespeed -y

Step 3: Set the WebAdmin password by running:

sudo /usr/local/lsws/admin/misc/admpass.sh

Step 4: Install PHP 8.1 and restart the server:

sudo apt install lsphp81 lsphp81-common lsphp81-mysql -y

Read our expert article to understand how LiteSpeed Cache preloads links and how it helps improve page speed and user experience.

[Need assistance with a different issue? Our team is available 24/7.]

Conclusion

Install OpenLiteSpeed on Debian 12.11 to provide your websites stability, speed, and up-to-date technical assistance. It is lightweight, free, and compatible with custom apps, WordPress, and Joomla. It’s an excellent option for developers and expanding projects due to its robust performance and ease of setup.
In brief, our Support Experts demonstrated how to fix the “554 5.7.1 : Relay access denied” error.