While some Raspberry Pi owners out there start with their Pi plugged to a monitor, a keyboard, and a mouse, some other users prefer to run the Pi in headless mode. The headless mode off-the-shelf wasn't really bad with the previous editions of Raspberry Pi prior the third one since the user could have access via the ethernet port. However, if the user decides to start in headless mode on wireless ethernet, a little configuration needs to be done, which happens to be the topic of this tutorial.
