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What is Rocky Linux?BenefitsUse casesHow to get startedHistoryLinux for serversNext stepsFAQAdditional resources

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What is Rocky Linux?

If you’re a new developer exploring operating systems, you’ve probably come across a variety of Linux distributions, each with its own strengths and purpose. One name that keeps popping up is Rocky Linux—but what exactly is it, and why is it gaining traction?

Whether you’re curious about its origins, how it compares to other Linux distros, or why developers are adopting it, this guide will break it all down in simple terms. Let’s dive in.

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What is Rocky Linux?

Rocky Linux is an open-source operating system that serves as a community-driven alternative to CentOS. It provides a stable and secure platform for enterprise-level applications, ensuring compatibility with Red Hat Enterprise Linux (RHEL). This compatibility allows users to transition to Rocky Linux without making significant alterations to their existing environments, thus minimizing disruption.

Rocky Linux is an open-source operating system that serves as a community-driven alternative to CentOS. It provides a stable and secure platform for enterprise-level applications, ensuring compatibility with Red Hat Enterprise Linux (RHEL). This compatibility allows users to transition to Rocky Linux without making significant alterations to their existing environments, thus minimizing disruption. The advantages of utilizing Rocky Linux include a robust security framework, strong community support, and a commitment to being a production-ready platform for various applications.

Unlike proprietary operating systems, Linux’s open-source nature allows users to modify and distribute the code freely, fostering a collaborative community that drives continuous improvements. With a plethora of distributions, or ‘distros,’ Linux caters to diverse needs, from personal computing to enterprise-level applications.

Features and benefits

Rocky Linux is a popular choice among developers and enterprises looking for a stable, open-source operating system. Here are some key features and benefits:

Binary compatibility with RHEL – Rocky Linux is a downstream rebuild of Red Hat Enterprise Linux (RHEL), meaning it provides the same performance, reliability, and compatibility without the cost.
Long-term stability – Designed for production environments, Rocky Linux offers predictable updates and extended support, making it a solid choice for businesses and developers alike.
Open-source and community-driven – Unlike CentOS Stream, which follows a rolling-release model, Rocky Linux stays true to the traditional RHEL structure, guided by an active community of developers and contributors.
Security and reliability – With regular security updates and enterprise-grade stability, Rocky Linux is a great option for hosting servers, containers, and cloud environments.
Ease of migration – If you’re coming from CentOS, migrating to Rocky Linux is straightforward, with tools that make the transition seamless.
Support for enterprise applications – Rocky Linux works well with enterprise software, databases, and cloud platforms, making it a versatile option for development and deployment.

Use cases

Rocky Linux is a versatile operating system suited for a wide range of use cases, particularly for developers, businesses, and IT professionals. Here are some key scenarios where it shines:

Server hosting – Ideal for web servers, database servers, and enterprise applications, thanks to its stability, security, and long-term support.
Cloud computing – Works seamlessly with major cloud providers like AWS, Azure, and Google Cloud, making it a great choice for cloud-based infrastructure.
Software development – Provides a reliable environment for building, testing, and deploying applications, especially for those targeting RHEL-compatible systems.
Containerization and virtualization – Fully compatible with Docker, Podman, and Kubernetes, making it an excellent choice for containerized applications and virtual machines.
Enterprise environments – Trusted for large-scale business operations, including financial services, healthcare, and government applications, due to its enterprise-grade reliability.
Networking and security – Often used for firewalls, VPN servers, and security-focused applications due to its strong security updates and community-driven support.
Educational and research institutions – Popular in academic and research settings where a free, stable Linux distribution is needed for computing, simulations, and teaching purposes.

How to set up Rocky Linux

Getting started with Rocky Linux on a server is a straightforward process. Here’s a step-by-step guide to help you set it up:

Download the Rocky Linux ISO – Visit the official Rocky Linux website and download the latest stable version. Choose the appropriate ISO based on your needs (minimal, DVD, or boot ISO).
Create a bootable installation media – Use tools like Rufus (Windows) or dd command (Linux/macOS) to create a bootable USB. If using a virtual machine (VM), mount the ISO directly in your VM settings.
Install Rocky Linux on your server – Boot your server from the installation media. Follow the guided installation process to configure disk partitions, networking, and software packages. Set up a root password and create a user account.
Update and secure your system – Once installed, log in and update the system, enable firewall and SELinux for security, and configure SSH if needed for remote access.
Install Essential Packages – Depending on your use case, install required software, such as:
- Web server: sudo dnf install httpd -y
- Database server: sudo dnf install mariadb-server -y
- Development tools: sudo dnf groupinstall "Development Tools" -y
Deploy and manage your applications – Configure your server to run web applications, databases, or containerized workloads using Docker or Kubernetes.
Monitor and maintain your server – Use tools like htop, netstat, and journalctl to monitor system performance and logs. Set up automated backups and security updates for long-term stability.

A brief history of Rocky Linux

Rocky Linux was created in response to the December 2020 announcement that CentOS Linux would be shifting from a stable downstream build of Red Hat Enterprise Linux (RHEL) to the rolling-release CentOS Stream. This change left many users—especially businesses and developers—without a free, RHEL-compatible alternative.

In reaction to this, Gregory Kurtzer, one of the original founders of CentOS, launched the Rocky Linux project as a community-driven, RHEL-compatible replacement. Named after Rocky McGaugh, a co-founder of CentOS who had passed away, the project aimed to continue CentOS’s original mission: providing a stable, enterprise-grade Linux distribution.

By June 2021, Rocky Linux 8.4 was officially released, quickly gaining traction among system administrators and enterprises looking for a CentOS replacement. Since then, the project has maintained a steady development pace, with strong community support, regular security updates, and long-term stability—solidifying its position as one of the top alternatives to RHEL.

Rocky Linux for VPS or dedicated servers

Rocky Linux has emerged as a powerful operating system for Virtual Private Servers (VPS) and dedicated servers, providing a stable and reliable environment.

Its community-driven nature ensures continuous updates and maintenance by a dedicated group of developers and users. This collaborative approach fosters trust and transparency, making it an appealing option for users who prioritize long-term support and reliability in their server environments.
Another significant advantage of Rocky Linux is its compatibility with enterprise-level applications. As a fork of CentOS, users migrating from CentOS can enjoy a seamless transition without the need to overhaul their existing infrastructure. This compatibility ensures that businesses can maintain operations without disruptions, thereby facilitating a smoother workflow.
Rocky Linux is also widely recognized for its strong security features, which are critical for both VPS and dedicated server environments. Regular updates and a strong emphasis on security patches provide users with the confidence that their data and applications are well-protected against potential vulnerabilities.
Furthermore, Rocky Linux’s performance optimization capabilities make it an excellent choice for resource-intensive applications. Its lightweight architecture ensures efficient use of server resources, enabling users to maximize performance and minimize overhead.

With strong permission and user role features, Linux provides a more secure environment compared to other operating systems. Regular updates and a large community of developers contribute to the rapid identification and patching of vulnerabilities, ensuring server security against potential threats.

Furthermore, Linux supports a vast array of applications and tools, making it highly adaptable for various workloads. This flexibility allows businesses to run everything from web servers and databases to cloud services seamlessly.

Next steps

Rocky Linux has positioned itself as a reliable alternative to CentOS, drawing the attention of both individuals and businesses seeking a stable open-source operating system. If you are contemplating the switch or simply wish to explore the features that Rocky Linux has to offer, the first step is to familiarize yourself with its array of features and benefits.

Once you’ve established foundational knowledge, the next step is to choose a hosting solution that fits your needs, and that’s where Liquid Web comes in. We offer the industry’s fastest and most secure VPS servers, as well as top-performant dedicated servers, with multiple Linux distros.

Click below to explore options or start a chat with one of our hosting experts now.

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Rocky Linux FAQ

How can I check the Rocky Linux version?

You can easily check the version of Rocky Linux by opening a terminal and typing the command cat /etc/os-release. This command will display relevant information, including the version number of your Rocky Linux installation.

How do I download Rocky Linux?

The official website offers ISO images for download. To get started, visit the Rocky Linux download page, select the version you require, and follow the instructions provided.

Is Rocky Linux the same as CentOS?

Rocky Linux is both similar to and different from CentOS. It was created specifically as a response to the discontinuation of CentOS as a stable release, aiming to provide a comparable experience and compatibility for users who previously relied on CentOS.

Is Rocky Linux based on Debian?

No, Rocky Linux is not based on Debian. It is a fork of CentOS, which itself is derived from Red Hat Enterprise Linux (RHEL). Therefore, while both Rocky Linux and Debian are recognized as Linux distributions, they possess different underlying architectures and package management systems.