Setting up Kali Linux as a virtual machine in VirtualBox is one of the safest and most practical ways to begin learning Metasploit. Instead of installing Kali on your main computer, you run it inside a virtual environment, which allows you to practise security tools in an isolated setup while keeping your primary operating system unchanged. This is especially useful for beginners because it reduces risk and makes troubleshooting easier.
In this topic, you learn how to install Oracle VirtualBox and create a new virtual machine for Kali Linux. You will choose the correct Kali image (ISO or a prebuilt virtual machine image), assign system resources such as RAM, CPU, and storage, and configure basic virtual hardware settings. Proper resource allocation is important because Kali must run smoothly while you use tools like Metasploit, scanners, and terminals.
You will also learn how to attach the Kali image, start the virtual machine, and complete the installation or first boot process. After setup, it is important to install Guest Additions (where applicable) and configure settings such as screen resolution, clipboard sharing, and shared folders, depending on your course requirements. Network settings are also a key part of this topic because your Kali machine must be able to communicate with target machines in the lab.
By the end of this topic, you should have a working Kali Linux virtual machine in VirtualBox, ready for safe lab-based practice, updates, and future Metasploit exercises.
