Chapter 1, The Ubuntu Server Installation, serves as an Ubuntu Server installation guide.

Chapter 2, Configuring and Administering Ubuntu Server, provides the necessary knowledge and tools that are required to manage an Ubuntu Server.

Chapter 3, Deploying Servers on Ubuntu, allows users to easily set up and deploy a set of frequently used services, such as e-mail, the Web, DNS, and so on.

Chapter 4, Security with Ubuntu, serves as a security guide for the Ubuntu Server.

Chapter 5, Virtualization and Cloud Computing inside the Ubuntu Server, provides the knowledge needed to work with virtualization and Cloud computing.

Chapter 6, Tips and Tricks for Ubuntu Server, contains some of the most useful tips and tricks that every Ubuntu administrator needs.

To use this book, you need only basic knowledge Linux OS and a cup of coffee.

This book is intended for system administrators who are familiar with the fundamentals of the Linux operating system and are looking for a fast-paced guide on Ubuntu. Those familiar with the older versions of Ubuntu will also find this book useful. Basic knowledge of Linux administration is assumed. By the end of this book, readers will have a good understanding of working with the latest version of Ubuntu and exploring the new features of Ubuntu Server administration.

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We can include other contexts through the use of the include directive."

A block of code is set as follows:

zone "localhost" {
  type master;
  file "/etc/bind/db.local";
  allow-transfer { 192.168.1.2; };
  also-notify { 192.168.1.2; };
};
zone "127.in-addr.arpa" {
  type master;
  file "/etc/bind/db.127";
  allow-transfer { 192.168.1.2; };
  also-notify { 192.168.1.2; };
};

Any command-line input or output is written as follows:

sudo ln -s /etc/phppgadmin/apache.conf /etc/apache2/sites-available/phppgadmin
sudo a2ensite phppgadmin
sudo apache2ctl graceful

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Then, go to the Settings of the machine and select the System tab."

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