Get Started with Red Hat Enterprise Linux

Dennis Kibbe

Mesa Community College

Module Outline

Understanding Linux
What is Linux?
Why Learn Linux?
What is a Linux Distribution?
Running Linux at Home
Module Summary
Resources
Graded Quiz

Learning Objectives

By the end of this module, you’ll be able to:

Explain the business advantages of open‑source software.
Describe different methods for running your own Linux distribution.
Identify several well‑known Linux distributions.
Understand how Fedora and Red Hat Enterprise Linux serve different needs.

Understanding Linux

Linux is a powerful, Open Source operating system that's widely used around the world—from smartphones and web servers to supercomputers and embedded systems. At its core, Linux is just a kernel—the part of the operating system that communicates directly with the hardware. But when we say "Linux," we usually mean a complete Linux distribution, which includes the kernel plus software tools and applications that make the system usable. Originally developed by Linus Torvalds in 1991, Linux has grown into a collaborative, community-driven project supported by individuals, companies, and organizations globally. One of the key strengths of Linux is that it's Open Source—anyone can view, modify, and distribute the code. Because it's reliable, secure, and highly customizable, Linux is a popular choice in data centers, cloud environments, and even everyday desktops.

Why Learn Linux?

Tux - The Linux Mascot

So, why should you learn Linux? First, Linux is everywhere. It powers the majority of web servers, cloud platforms, smartphones, and even smart appliances. If you’ve used Google, Facebook, or Amazon today—you’ve interacted with Linux. Second, it's essential for careers in IT, cybersecurity, cloud computing, and software development. Employers highly value Linux skills, and certifications like Red Hat Certified System Administrator or CompTIA Linux+ can really boost your resume. Third, Linux gives you more control. It teaches you how operating systems work under the hood and lets you customize your environment, automate tasks, and solve problems more efficiently. Finally, it’s free and Open Source. That means you can experiment, learn, and build without worrying about licensing fees. You’re joining a global community that shares knowledge and drives innovation. In short—learning Linux opens doors, deepens your understanding of computing, and empowers you to do more with technology.

What is a Linux Distribution?

A Linux distribution, or distro for short, is a complete operating system built around the Linux kernel. But the kernel by itself isn’t enough to be useful for most users. That’s where distributions come in. A Linux distribution packages the Linux kernel together with essential software like:

System libraries and utilities
Package managers
User interfaces (graphical or command-line)
Tools for installing and updating software

Some distros are designed for general use, like Ubuntu or Fedora, while others are specialized—for example, Kali Linux for security testing or CentOS for servers. Each distribution may have different default tools, target audiences, and philosophies, but they all rely on the same core: the Linux kernel. Understanding distributions helps users choose the right environment for their needs, whether it’s for development, education, enterprise, or personal use. DistroWatch lists 100 different Linux distributions.

Running Linux at Home

Running Linux at home is a great way to explore Open Source technology, save costs, and gain control over your computing environment. You can install Linux on older hardware to give it a second life, or run it alongside Windows or MacOS in a dual-boot or virtual machine setup. Popular beginner-friendly distributions like Ubuntu, Linux Mint, and Zorin OS make this easy.

At home, Linux can be used for many practical purposes:

As a secure and fast desktop operating system
As a file server or media server (e.g., using Samba, Plex, or Nextcloud)
For software development, learning programming, or experimenting with open-source tools
Even for home automation or running a low-power server with a Raspberry Pi

The best part? Most Linux distributions are free, regularly updated, and supported by strong communities. Running Linux at home is not just about saving money—it's about learning, experimenting, and having the freedom to customize your system.

Module Summary