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1、Junos OS Fundamentals Series Its day one and you have a job to do, so start using the Junos CLI. Its fast, its easy, and youre just a few hours away from modifying, saving, and loading confi guration fi les onto your device. By Walter Goralski, Sean Clarke, and Ian Jarrett DAY ONE: EXPLORING THE JUN
2、OS CLI, SECOND EDITION The two most popular books on the Junos OS are now combined, revised, and updated into one book! Juniper Networks Books are singularly focused on network productivity and efficiency. Peruse the complete library at Published by Juniper Networks Books DAY ONE: EXPLORING THE JUNO
3、S CLI, SECOND EDITION The Junos OS command-line interface (CLI) includes dozens of shortcuts to get things done in your network. Youll spend much less time pounding away on your keyboard once you master these commands, and soon, with just a little effort, youll learn why so many people say that the
4、Junos OS saves time (often lots of it), reduces repetitive tasks, and helps to avoid costly mistakes. Day One: Exploring the Junos CLI, Second Edition is for beginning users of devices run- ning the Junos OS, or as a refresher course when its time to scale Juniper technology. It not only lays the fo
5、undation for learning the Junos OS, but also facilitates under- standing of the more advanced Junos OS books that populate the Day One library. This Second Edition combines two previous best-selling Day One books Day One: Exploring the Junos CLI and Day One: Configuring Junos Basics into a single up
6、dated and revised Junos OS book that gets you started and then helps you get things done. ITS DAY ONE AND YOU HAVE A JOB TO DO, SO LEARN HOW TO: ?Navigate the CLIs operational mode and configuration mode. ?Understand the hierarchies that underlie each mode. ?Get onboard help and use keyboard shortcu
7、ts to speed up your work. ?Show device status, alarms, and other helpful information in operational mode. ?Modify, save, and load configuration files with minimal risk to operations. ?Use basic configuration mode commands such as show, set, and delete. ?Capitalize on the safety features of the Junos
8、 OS commit model. ?Prepare system changes in advance. ?Use the shortcuts and tips of experienced users and avoid common problems. ISBN 978-1941441237 9 781941 441237 51600 By Walter Goralski, Sean Clarke, and Ian Jarrett Day One: Exploring the Junos OS CLI, Second Edition Chapter 1: Introducing the
9、Junos CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Chapter 2: Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Chapter 3: Understanding Operational Mode . . . . . . . . . . . . . . . . . . . . . . . 27 Chapter 4: Dis
10、covering Configuration Mode . . . . . . . . . . . . . . . . . . . . . . . . . 37 Chapter 5: Creating a Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59 Chapter 6: Configuring System Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65 Chapter 7:
11、 Setting Up User Accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Chapter 8: Configuring System Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Chapter 9: Working with Groups and Templates . . . . . . . . . . . . . . . . . . . . .95 Appendix . . . .
12、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Junos OS Fundamentals Series 2015 by Juniper Networks, Inc. All rights reserved. Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper
13、 Networks, Inc. in the United States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners. Juniper Networ
14、ks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice. Published by Juniper Networks Books Authors: Walter Goralski, Sean Clarke, Ian Jarrett Technical Reviewers: Nighat
15、 Ara, Rashmi Nadig, Kenneth Pacunas, Bryan Phillips, Chaitra Satish Editor in Chief: Patrick Ames Copyeditor and Proofer: Nancy Koerbel Illustrator: Karen Joice J-Net Community Manager: Julie Wider ISBN: 978-1-941441-23-7 (print) Printed in the USA by Vervante Corporation. ISBN: 978-1-941441-24-4 (e
16、book) Version History: v1, November 2015 2 3 4 5 6 7 8 9 10 This book was originally published as two books, Day One: Exploring the Junos CLI and Day One: Configuring Junos Basics. It has been updated, revised, and technically reviewed to match current Junos OS operations. This book is available in a variety of formats at: Second Edition Author Walter Goralski has been involved in networking and the Internet for many years. He has been an instructo
