To get the most out of this book you need to know the basics of ethical hacking and you will need to build a lab. You will need a virtual machine software (for example, VirtualBox or VMware) for the virtualization of the lab environment. To follow the examples, you will also need to install Kali Linux. Don't worry, I will discuss how to do it in Chapter 2, Kali Linux Installation. Kali Linux will be the attacker machine that we will use to test the security of the victim's machine. Speaking of the victim host, I encourage you to install a Windows 7 virtual machine where you will install a vulnerable web application called Mutillidae. Again, I will walk you through all the steps of building the vulnerable host in Chapter 1, Building a Vulnerable Web Application Lab. Finally, I will be using Burp Suite Professional Edition, but you can follow along with the free edition of this tool. That being said, all the tools that we are going to use for the security tests are already installed by default on Kali Linux.