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About the Getting Started Guide

Getting Started with Junos OS and Junos OS Evolved is intended to provide a high-level introduction to Junos OS and Junos OS Evolved, and explain basic concepts and operational principles for working with Juniper Networks devices.

In this guide, we explain the basics of Junos OS and Junos OS Evolved, including:

  • Understanding the network operating system software

  • How to access Juniper Networks devices

  • How to perform initial device configuration, including the root password, hostname, DNS, management and loopback interfaces, user accounts, and backup routers


References to Junos OS here, unless stated otherwise, also include and apply to Junos OS Evolved. Any differences are noted.

For a more technical and detailed exploration of Junos OS, see the Overview for Junos OS. It further explains Junos OS features, including security, configuration, monitoring, and managing network devices.

For introductory and overview information specific to Junos OS Evolved, see Introducing Junos OS Evolved. This guide will acquaint you with Junos OS Evolved, the next generation Junos OS, and explain its strengths, similarities to, and differences from Junos OS.

To learn how to use the command-line interface (CLI) and understand even more advanced topics, see the CLI User Guide. This guide explains using the CLI, configuration statements, managing configurations, and operational commands for monitoring Juniper Networks devices.