An important component of this book is the focus on making systems more secure. In modern IT environments, security is a very important topic, and learning how to secure a system early will help you strengthen your Linux skill set.
Most of the parts in this book end with a chapter that focuses just on security. In these chapters, you learn how to secure a particular component of Linux. The focus of this chapter is on securing your group and user accounts.
You have a large number of tools and features available to you to help you secure Linux. Although not all of these can be covered in this book, you will be exposed to a good variety of them.
After reading this chapter and completing the exercises, ...