Multi-site Drupal In this first chapter we will learn about the basics of multi-site hosting, including what it is and how it works. We will cover the necessary aspects of networking and web serving. The following are the main topics we will cover: · · · · · · · What multi-site configurations are, and how they differ from standard single-site configurations How Drupal's multi-site implementation fits into the picture Why and when multi-site configurations are useful How domain names and IP addresses are configured for multi-site How web servers handle multi-site How to configure the Apache server for multi-site How to use Vagrant and VirtualBox to quickly build a test environment By the end of this chapter, we will not only have conceptual knowledge of multi-site configurations, but we'll also have a virtual host configured with Linux, Apache,