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SELinux by Example: Using Security Enhanced Linux by David Caplan, Karl MacMillan, Frank Mayer

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Chapter 10. Object Labeling

In this chapter

• 10.1 Introduction to Object Labeling

• 10.2 File-Related Object Labeling

• 10.3 Network and Socket Object Labeling

• 10.4 System V IPC

• 10.5 Miscellaneous Object Labeling

• 10.6 Initial Security Identifiers

• 10.7 Exploring Object Labeling with Apol

• 10.8 Summary

• Exercises

For the SELinux policy to work, all object instances must be labeled with a security context. In this chapter, we discuss the various means of applying security contexts to object instances, including how security contexts are assigned when objects are created and the later modification of those labels (called relabeling).

10.1 Introduction to Object Labeling

All objects in SELinux have an associated security context from the ...

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