AlmaLinux

AlmaLinux: A Robust Alternative to CentOS

AlmaLinux is a free and open-source operating system based on the Red Hat Enterprise Linux (RHEL) distribution. It was born as a community response to Red Hat's announcement regarding the end of support for CentOS 8 in 2021. Its main objective is to offer a stable and reliable alternative for servers and production environments, ensuring binary compatibility with RHEL.

Origin and Foundation of AlmaLinux

The AlmaLinux project was launched by CloudLinux Inc. in March 2021, following Red Hat's announcement to discontinue CentOS as it was known. CloudLinux, a company with a long history in creating Linux solutions for servers, decided to provide a successor for the community that depended on CentOS. The name "Alma" comes from Spanish and means "soul," evoking the spirit and essence of the Linux community.

Main Features of AlmaLinux

1. Binary Compatibility with RHEL: AlmaLinux offers complete binary compatibility with Red Hat Enterprise Linux, ensuring that applications and services running on RHEL will work seamlessly on AlmaLinux.

2. Long-Term Support: One of the most notable features of AlmaLinux is its commitment to offering long-term support (LTS) with regular updates and security patches, ensuring a secure and up-to-date environment for its users.

3. Active Community: AlmaLinux has an active and growing community that provides support, documentation, and contributions to the project's development, which facilitates troubleshooting and the integration of new features.

4. Simple Migration: Migrating from CentOS to AlmaLinux is a simple and safe process, thanks to conversion tools developed by the community, allowing system administrators to switch without significant interruptions in their production environments.

Installation and Configuration

Installing AlmaLinux is similar to other RHEL-based distributions. Once the ISO is downloaded from the official AlmaLinux site, you can follow the standard installation process, selecting packages, configuring partitions, and adjusting network settings.

Server Configuration with AlmaLinux

For those looking to manage servers with AlmaLinux, Virtualmin can be an excellent tool. Virtualmin is an open-source control panel for managing web and mail servers, based on Webmin. It allows for intuitive management of multiple domains and users from a single interface. Installing Virtualmin on AlmaLinux can be done by following these steps:

1. Installing Dependencies: Before installing Virtualmin, make sure your system is updated and has the necessary dependencies installed:

   sudo dnf update -y
   sudo dnf install wget -y

2. Download the Virtualmin Installation Script:

   wget http://software.virtualmin.com/gpl/scripts/install.sh

3. Run the Installation Script:

   sudo /bin/sh install.sh

4. Accessing Virtualmin: Once the installation is complete, Virtualmin can be accessed via a web browser, using the address https://tu-ip:10000.

Security and Updates

Security is a priority in AlmaLinux. The development team ensures regular updates and security patches are provided to keep the system protected against vulnerabilities. To keep your system secure, it is essential to enable and configure FirewallD, SELinux, and other security tools integrated into the system.

Configuring FirewallD on AlmaLinux

To configure the firewall on AlmaLinux, you can follow these basic steps:

1. Enable and Start FirewallD:

   sudo systemctl enable firewalld
   sudo systemctl start firewalld

2. Open Specific Ports:

   sudo firewall-cmd --permanent --add-service=http
   sudo firewall-cmd --permanent --add-service=https
   sudo firewall-cmd --reload

Future and Continuous Development

The future of AlmaLinux looks promising thanks to its strong community and enterprise backing. CloudLinux has established the AlmaLinux OS Foundation, a non-profit organization dedicated to the governance and continuous development of the operating system, ensuring the project's sustainability and evolution.

Conclusion

AlmaLinux has quickly established itself as a viable and robust alternative for those seeking an RHEL-compatible Linux distribution. With its strong commitment to the community, long-term support, and ease of migration, AlmaLinux offers a practical and reliable solution for server and production environments. Its compatibility with tools like Virtualmin further simplifies server administration and configuration, making AlmaLinux a standout choice in the Linux ecosystem.

With its focus on security, stability, and community support, AlmaLinux is well-positioned to meet the needs of businesses, developers, and system administrators alike.