For your lab, you can use the hypervisor of your choice; the most common hypervisors are VirtualBox, VMware Workstation Pro, VMware Fusion Pro (for Mac), VMware ESXi, and Microsoft Hyper-V. For the penetration testing lab used in this book, I would recommend you to use VirtualBox since it is an open source hypervisor and a requirement for building one of the virtual machines.
Although you need to build the virtual machine using VirtualBox, after building the machine you can import it to any of the hypervisors you like.
This is the network diagram for the penetration-testing lab:
We will use four virtual machines with Kali Linux, ...
