Book excerpt: This second booklet in the Junos Fundamentals Series helps you to configure the basic settings of your device and to learn more about configuration mode. These settings are the first steps to configuring a Junos device, whether you are setting up a router, switch, or security platform.Building upon the foundation set by the first booklet, Day One: Configuring Junos Basics continues the practical tutorial for first-time users of Junos and Juniper products. It is also written as a reference or refresher for more experienced Junos administrators.