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To get the most out of this book
This book is for readers who already have some experience with Linux, though it 
doesn't necessarily have to be with Ubuntu. Preferably, the reader will understand 
basic Linux command-line skills, such as changing directories, listing contents, and 
issuing commands as regular users or with root. Even if you don't have these skills, 
you should read this book anyway—the opening chapters will cover many of these 
concepts.
In this book, we'll take a look at real-world situations in which we can deploy 
Ubuntu Server. This will include the installation process, serving web pages, setting 
up databases, and much more. Specifically, the goal here is to be productive. Each 
chapter will teach the reader a new and valuable concept, using practical examples 
that are relative to real organizations. Basically, we focus on getting things done, 
rather than focusing primarily on theory. Although the theory that goes into Linux 
and its many distributions is certainly interesting, the goal here is to get you to the 
point where if a work colleague or client asks you to perform work on an Ubuntu-
based server, you'll be in a good position to get the task done. Therefore, if your 
goal is to get up and running with Ubuntu Server and learn the concepts that really 
matter, this book is definitely for you.
To follow along, you'll either need a server on which to install Ubuntu Server, a 
virtual Ubuntu instance from a cloud provider, or a laptop or desktop capable of 
running at least one virtual machine.