Red Hat Enterprise Linux (RHEL) is a leading commercial Linux operating system designed for enterprise-grade environments. It's maintained by Red Hat, Inc., a global open-source solutions company known for delivering enterprise-level software built on open-source technologies.
Founded: 1993 by Bob Young and Marc Ewing
Headquarters: Raleigh, North Carolina, USA
Originally known for Red Hat Linux, which split into Fedora (community) and RHEL (enterprise) in 2003.
Went public in 1999 under ticker RHT.
Achieved massive success through subscriptions and enterprise services.
Acquired by IBM in 2019 for $34 billion, making it the largest software acquisition at the time.
Enterprise-grade Linux distribution with:
Long-Term Support (up to 10+ years)
SELinux for mandatory access control
Certified for hardware and software compatibility
Predictable lifecycle and security patches
Red Hat Ansible Automation Platform – for IT automation
Red Hat OpenShift – Kubernetes-based container platform
Red Hat Satellite – systems lifecycle management
Red Hat Insights – predictive analytics for RHEL systems
Over the years, Red Hat has acquired or integrated several technologies:
CoreOS → expanded OpenShift capabilities
Ansible → became Red Hat's flagship automation tool
Qumranet → brought in KVM virtualization
Recent RHEL versions (8 & 9) have introduced:
AppStreams: Modular software stream management
Image Builder: Create custom RHEL OS images for clouds/VMs
Podman: Daemonless Docker-compatible container engine
Web Console (Cockpit): Web-based server administration UI
Open Source First: All code begins in upstream communities (e.g., Fedora).
Innovation through collaboration: Actively contributes to Linux, Kubernetes, systemd, and many more.
Emphasizes:
Transparency
Community engagement
User freedom and security
Enterprises, governments, financial institutions, healthcare, and telecom
Companies requiring regulatory compliance, high availability, and certified support
RHEL is downstream of Fedora Linux, which serves as its testing ground.
Red Hat engages heavily in the open-source community, contributing to:
Linux kernel
GNOME
OpenShift/Kubernetes

Red Hat Enterprise Linux
By Red Hat, Inc
