Linux Distributions

A free, 1:1 binary-compatible rebuild of RHEL, originally funded by CloudLinux and now steered by an independent nonprofit foundation.

Amazon's own Linux distribution, tuned for and tightly integrated with AWS, free to run on EC2 and provided with five years of security support per release.

A rolling preview of the next RHEL minor release, sitting between Fedora and RHEL in Red Hat's development pipeline rather than downstream of RHEL like classic CentOS was.

A commercial, RHEL-compatible distribution purpose-built for shared web hosting, isolating each customer account's resource usage at the kernel level.

The volunteer-run, community-governed distribution that Ubuntu, Mint, MX Linux, Kali, Raspberry Pi OS, and hundreds of other distributions are built on top of.

Fedora's server-focused edition, pairing the same fast-moving upstream packages as Fedora Workstation with the Cockpit web-based admin console preinstalled.

Oracle's own free, RHEL-compatible distribution, notable for its optional Unbreakable Enterprise Kernel and first-class support for Oracle's own database and cloud products.

Broadcom/VMware's minimal Linux host operating system purpose-built for running containers and virtual machine appliances efficiently.

A free, Debian-based virtualization platform combining KVM virtual machines and LXC containers under one web-based management interface, widely used as a self-hosted alternative to VMware ESXi.

The commercial, paid-support enterprise Linux distribution most other RHEL-compatible distributions (Rocky, AlmaLinux, Oracle Linux) exist to rebuild.

A free, community-governed, bug-for-bug rebuild of Red Hat Enterprise Linux, created after CentOS shifted away from being one.

SUSE's flagship commercial enterprise server distribution, a longtime RHEL alternative especially strong in Europe and in SAP-certified deployments.

A free RHEL rebuild maintained by Princeton University and the Institute for Advanced Study, historically known as PUIAS Linux and popular in academic HPC clusters.

A library of around 100 free, pre-built Debian-based server appliance images -- one per application (WordPress, GitLab, file server, and so on) -- ready to deploy as a VM, cloud image, or bare-metal install.

Canonical's server edition of Ubuntu -- the same package base and LTS cadence as Ubuntu Desktop, minus the desktop environment, and the most common Linux base image in public cloud deployments.

An Ubuntu-based small-business server platform that reimplements Microsoft's Active Directory protocols, letting Linux fully stand in for a Windows Server domain controller.