This course teaches you how to strengthen your cluster’s underlying systems by reducing the host operating system’s attack surface. You’ll learn host hardening, how to remove unnecessary services, and set up logging and access controls. You'll cover network security, host firewalls, and kernel hardening with tools like SecComp and AppArmor. You’ll also focus on identity and access management, applying least privilege and understanding RBAC risks. Each lesson provides practical strategies to make your Kubernetes environments more secure and prepare you for the CKS exam.
Certified Kubernetes Security Specialist (CKS): Unit 4
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Certified Kubernetes Security Specialist (CKS): Unit 4
This course is part of Certified Kubernetes Security Specialist (CKS) Specialization
Instructor: Pearson
Included with 
Gain insight into a topic and learn the fundamentals.
Intermediate level
Recommended experience
4 hours to complete
Flexible schedule
Learn at your own pace
What you'll learn
Minimize host operating system and network exposure to reduce Kubernetes attack surfaces.
Harden the kernel using SecComp, AppArmor, and rigorous security testing.
Implement least privilege identity and access management for both host and cloud environments.
Configure and validate host firewalls to secure node network access.
Skills you'll gain
Details to know
Shareable certificate
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Recently updated!
August 2025
Assessments
4 assignments
Taught in English
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This course is part of the Certified Kubernetes Security Specialist (CKS) Specialization
When you enroll in this course, you'll also be enrolled in this Specialization.
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There is 1 module in this course
In this module, you’ll learn strategies to strengthen the underlying systems that support Kubernetes. You’ll focus on minimizing the host operating system footprint, implementing pod security standards, reducing external network access, hardening the kernel, and optimizing identity and access management roles. By applying these techniques, you’ll build a resilient and secure Kubernetes infrastructure, making it much more difficult for attackers to compromise your system.
What's included
22 videos4 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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