Ubuntu vs RHEL

Ubuntu vs RHEL (Red Hat Enterprise Linux) – Interview Ready Comparison

Many people say “Linux is Linux,” but in interviews and real production environments, the difference matters.

1️⃣ Ownership & Purpose
Ubuntu is developed by Canonical and is widely used in cloud, startups, and DevOps environments.
RHEL is developed by Red Hat (IBM) and is designed for enterprise production systems.

2️⃣ Package Management
Ubuntu → APT (.deb packages)
RHEL → YUM/DNF (.rpm packages)

3️⃣ Support & Lifecycle
Ubuntu offers free usage with optional paid support and 5-year LTS releases.
RHEL requires a subscription but provides official enterprise support and 10+ years lifecycle with backported security patches.

4️⃣ Security
Ubuntu uses AppArmor by default.
RHEL uses SELinux in enforcing mode by default (more granular control).

5️⃣ Real-World Usage
Ubuntu → Cloud servers, CI/CD pipelines, containers.
RHEL → Banking, telecom, government, large enterprise data centers.

Final Interview Answer:
Ubuntu is flexible and cloud-friendly.
RHEL is enterprise-grade, stable, certified, and officially supported.