This course is designed to equip you with the skills necessary to protect and harden Linux distributions such as Debian, Ubuntu, CentOS, SUSE, and Arch. Through five engaging lessons, you'll delve into the essentials of Linux security, learning to implement in-depth defense strategies and understand the CIA triad. Master the art of updating Linux systems to mitigate vulnerabilities, and gain proficiency in managing services to balance system availability and security. You'll also explore techniques to harden various Linux distributions both on-premises and in the cloud. Finally, enhance your knowledge with application and GRUB security, focusing on tools like AppArmor and SELinux. By the end of this course, you'll be adept at safeguarding your Linux environments, ensuring they remain robust and resilient against threats.
Linux Security Basics and Beyond: Unit 2
This course is part of Linux Security Basics and Beyond Specialization
Instructor: Pearson
Included with 
Recommended experience
What you'll learn
Understand and apply the principles of in-depth defense strategies and the CIA triad to Linux security.
Efficiently update and manage Linux systems to enhance security and performance.
Harden Linux distributions by configuring services and implementing best practices.
Secure applications using Linux security modules like AppArmor and SELinux.
Skills you'll gain
Details to know
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July 2025
5 assignments
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There is 1 module in this course
This module is about updating and securing Linux distributions, such as Debian, Ubuntu, CentOS, SUSE, and Arch. You will learn about the security basics of a Linux operating system, the concept of defense in-depth, and the CIA triad of security. You will also learn about updates, the number one way to harden a Linux system, as well as working with services and system health. You will see how the system CTL commands can be used to increase availability and reduce the attack surface of a Linux server. You will also gain experience securing Linux distros, in particular, how to harden Debian, Ubuntu, and CentOS, both on-premises and on the cloud. Finally, you will learn about application and GRUB security, and will discuss AppArmor and SELinux. By the end of this module, you will understand the importance of updating and hardening your system to maintain data security and availability for users.
What's included
28 videos5 assignments
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Frequently asked questions
Yes, you can preview the first video and view the syllabus before you enroll. You must purchase the course to access content not included in the preview.
If you decide to enroll in the course before the session start date, you will have access to all of the lecture videos and readings for the course. You’ll be able to submit assignments once the session starts.
Once you enroll and your session begins, you will have access to all videos and other resources, including reading items and the course discussion forum. You’ll be able to view and submit practice assessments, and complete required graded assignments to earn a grade and a Course Certificate.
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