Description: Based on RHEL refers to Linux distributions that are derived from Red Hat Enterprise Linux (RHEL), an open-source operating system known for its stability and long-term support. These distributions inherit the robust features of RHEL, making them popular choices for servers and enterprise environments. Key features include advanced package management using the RPM system, enhanced security, and customization capabilities. RHEL-based distributions are often used by organizations looking for a free or lower-cost alternative to RHEL while maintaining compatibility with their applications and tools. This allows users to benefit from a mature and well-documented ecosystem while enjoying the flexibility offered by open-source software. Notable examples of RHEL-based distributions include CentOS and AlmaLinux, each with its particular focus and features that make them suitable for different types of users and applications.
History: CentOS was founded in 2004 as a free alternative to RHEL, allowing users to access an enterprise operating system at no cost. Over the years, CentOS gained popularity in the server and cloud space. In 2020, Red Hat announced a change in CentOS’s development model, transitioning it to CentOS Stream, which generated some controversy among its users. AlmaLinux emerged as a community-driven fork of CentOS, aiming to continue the legacy of providing a stable RHEL-compatible distribution.
Uses: RHEL-based distributions are widely used in enterprise environments, especially in servers and data centers. Their stability and long-term support make them ideal for critical applications. They are also popular in software development, where developers can create and test applications in a production-like environment. Additionally, many organizations use these distributions to implement cloud solutions, thanks to their integration capabilities with technologies like OpenStack and Kubernetes.
Examples: A practical example of CentOS usage is in web servers, where its stability and security are crucial. Many companies use CentOS to host critical applications and websites. On the other hand, AlmaLinux is designed for production use and is increasingly being adopted in similar scenarios to ensure continuity for users transitioning from CentOS.
