In order to set the stage for the rest of this book and to help you reproduce the recipes and their output, I strongly recommend that you create a test environment where you can run various tools that are included with Kali Linux. In this chapter, we will be focusing on building our testing environment based on free or low-cost applications to minimize cost.
Starting with installing the virtualization platform, VirtualBox, we will walk through a few common installation techniques for Kali Linux; you will also learn how to update and maintain your installation.
