In this chapter, we have started preparing our local machine for the rest of the book. We now know about the differences between virtual and physical machines, and why we prefer to use a virtual machine for the remainder of this book. We've learned about the two different types of hypervisors. We have installed and configured VirtualBox with a virtual machine, on which we have installed the Ubuntu 18.04 operating system. Finally, we have connected to our running virtual machine using SSH instead of the VirtualBox terminal, which affords better usability and options.

The following command was introduced in this chapter: ssh and exit.

In the next chapter, we will finish setting up our local machine by looking at some different tools we can use that will help us with bash scripting, both on the GUI and on the virtual machine CLI.