"SELinux by Example" is a well-written book that presents a primer on the SELinux framework as well as a number of useful real-world examples of the use of SELinux. Chapters include study points and questions to help insure you have mastered a given set of topics before you move on to more advanced topics.

Users new to Linux administration should first make sure they have a strong understanding of the default Linux security and permissions model. While "SELinux by Example" describes SELinux from the ground up, it does assume a fair amount of knowledge about Linux administration.

The examples in the book provide a clear definition of an SELinux policy as well as explanations of how each component of the policy is applied and the purposes of those components.

The book ends with a comprehensive reference guide to the SELinux Policy Language, making it an invaluable reference to those already familiar with SELinux. The index to the book provides more insight into many parts of the syntax.

"SELinux by Example" is an absolute benefit to anyone who is tasked with administering a Security-Enhanced Linux system, whether it is their first experience with SELinux or they are a seasoned veteran administrator.

--- DISCLAIMER: This is a requested review by PTR, however any opinions expressed within the review are my personal ones. ---

The book SbE comes in 3 parts and additionally with 45 page strong Appendix
containing more detailed information where to get additonal information from.

Part I - A general overview (p. 1-55)
Part II - The SELinux Policy language (p. 57-236)
Part III - Creating and writing SELinux Security Policies (p. 237 - 362)
Appendix A (p. 364 - 409)

The book is mainly about policies itself and how to implement them.
Writing those policies is most of the time a time intensive and error prone task.

Readers planning on understanding SELinux should bring some time with them to fully understand and appreciate
the examples given for the "example" policy (f.e. strict or targeted) and the "reference" policy.

Whats going to prove useful is the hints given towards which trade-offs you may need to take when deciding
f.e. to use the strict policy. While the topic itself might seem dry for many readers the book will prove
useful for those genuinely interested.

The book does describe the most useful tools to put the reader straight on track and avoid loosing time.
The lovely prepared useful details like the 17 page index are a nice feature you will find yourself refering
to when in need. Some readers might find that they better leave the setup of SELinux to professional service
companies, but still the book serves to get an understanding what you can and possibly cant do with SELinux.

Many readers might also find the report useful provided at

http://en.hakin9.org/products/articleInfo/84