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SELinux System Administration, Third Edition

You're reading from   SELinux System Administration, Third Edition Implement mandatory access control to secure applications, users, and information flows on Linux

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Product type Paperback
Published in Dec 2020
Publisher Packt
ISBN-13 9781800201477
Length 458 pages
Edition 3rd Edition
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Author (1):
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Sven Vermeulen Sven Vermeulen
Author Profile Icon Sven Vermeulen
Sven Vermeulen
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Table of Contents (22) Chapters Close

Preface 1. Section 1: Using SELinux
2. Chapter 1: Fundamental SELinux Concepts FREE CHAPTER 3. Chapter 2: Understanding SELinux Decisions and Logging 4. Chapter 3: Managing User Logins 5. Chapter 4: Using File Contexts and Process Domains 6. Chapter 5: Controlling Network Communications 7. Chapter 6: Configuring SELinux through Infrastructure-as-Code Orchestration 8. Section 2: SELinux-Aware Platforms
9. Chapter 7: Configuring Application-Specific SELinux Controls 10. Chapter 8: SEPostgreSQL – Extending PostgreSQL with SELinux 11. Chapter 9: Secure Virtualization 12. Chapter 10: Using Xen Security Modules with FLASK 13. Chapter 11: Enhancing the Security of Containerized Workloads 14. Section 3: Policy Management
15. Chapter 12: Tuning SELinux Policies 16. Chapter 13: Analyzing Policy Behavior 17. Chapter 14: Dealing with New Applications 18. Chapter 15: Using the Reference Policy 19. Chapter 16: Developing Policies with SELinux CIL 20. Assessments 21. Other Books You May Enjoy

Understanding SELinux-secured virtualization

Virtualization is a core concept that plays a part in many infrastructural service designs. Ever since its inception in the early 1970s as a means of isolating workloads and abstracting hardware dependencies, virtualization implementations have grown tremendously. When we look at infrastructure service offerings today, we quickly realize that many cloud providers would be out of service if they could not rely on the benefits and virtues of virtualization.

One of the properties that virtualization offers is isolation, which SELinux can support and augment quite nicely.

Introducing virtualization

When we look at virtualization, we look at the abstraction layers it provides to hide certain resource views (such as hardware or processing power). Virtualization contributes to the development of more efficient hardware usage (which results in better cost control), centralized views on resources and systems, more flexibility in the number...

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