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Organization of This Book
This book is divided into nine chapters and five appendixes. Here is
a brief summary of each chapters focus:
Chapter 1,
Introducing SELinux, explains why
SELinux is valuable and which common security flaws it addresses,
including the concept of the 0-day vulnerability.
Chapter 2, Overview of the SELinux Security
Model, explains such basic concepts as roles, domains, and
transitions. It prepares the reader for SELinux installation.
Chapter 3, Installing and Initially Configuring
SELinux, lays out the current state of SELinux support in
several GNU/Linux distributions and provides guidance for
installation.
Chapter 4, Using and Administering SELinux, is a
basic SELinux system guide for system administrators, covering such
techniques as user administration.
Chapter 5, SELinux Policy and Policy Language
Overview, prepares the reader to write or revise policies,
which is necessary when new software is installed on an SELinux
system or when policies need to be adjusted to current system use.
This chapter discusses the build process, the layout of
policy-related files, and general issues such as macros.
Chapter 6, Role-Based Access Control, introduces
the syntax of policy files and describes the directives that relate
to user roles.
Chapter 7, Type Enforcement, discusses the next
major aspect of SELinux policies, type-enforcement files.
Chapter 8, Ancillary Policy Statements, finishes
the explanation of policy statements with a description of
constraints and other miscellaneous directives.
Chapter 9, Customizing SELinux Policies, pulls
together all the material from the book, provides concrete examples
of how to adjust SELinux systems to users needs,
and introduces tools that help monitor the system and view policies.
Five appendixes list the classes, operations, macros, types, and
attributes defined by SELinux policy files.
