To get the most out of this book
In order to gain the most benefit from the practical aspects of this book, you will need to have a virtualization environment set up. This can be set up using VMware or VirtualBox. Hyper-V will work, but there is a restriction that does not allow you to link a wireless card directly to the virtual machine. This prevents you from performing wireless attacks if you have a compatible wireless card.
The penetration testing operating system of choice is Kali Linux. Having some basic Linux knowledge is not mandatory, but would be beneficial. Kali Linux contains hundreds of tools. We do not focus on all of them, but only on the tools that would get the job done. Occasionally, we will look at tools that are available on the internet, but the installation and setup steps are clearly defined within the book.
The target systems used in this book are predominantly freely available, such as Metasploitable and OWASP BWA. We will work with Windows Server and Windows 10 as a target operating system in some chapters; the evaluation editions of these operating systems will suffice. Having knowledge of how to set up Active Directory would be beneficial.
Finally, this book does not focus on a specific target operating system, instead focusing on teaching you how to use various techniques, methodologies, and tools to obtain the results you need. Your knowledge will increase over time as you continue to apply what you have learned and gain experience by practicing your skills with various other vulnerable machines found on the internet.