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

Product type Paperback

Published in Dec 2020

Publisher Packt

ISBN-13 9781800201477

Length 458 pages

Edition 3rd Edition

Tools

Docker

Concepts

System Administration

Author (1):

Sven Vermeulen

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Table of Contents (22) Chapters

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

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Chapter 10: Using Xen Security Modules with FLASK

In Chapter 9, Secure Virtualization, we saw that libvirt is able to apply sVirt protection measures, based upon SELinux domains and category assignation, to several supported hypervisors. Xen, another popular open source hypervisor, is also supported by libvirt, but it is much more common to use Xen on its own, independent from libvirt.

Xen itself has a security framework called Xen Security Modules (XSM), similar to Linux Security Modules (LSM), and an access control system called XSM-FLASK, which is their SELinux-based security framework. We'll see how Xen uses XSM, how to build Xen with XSM support, and finally, how we can apply policies to Xen domains.

In this chapter, we're going to cover the following main topics: