Networking for Dummies®, 12Th Edition
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Networking Networking 12th Edition by Doug Lowe Networking For Dummies®, 12th Edition Published by: John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030-5774, www.wiley.com Copyright © 2020 by John Wiley & Sons, Inc., Hoboken, New Jersey Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without the prior written permission of the Publisher. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permissions. 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Library of Congress Control Number: 2020933431 ISBN 978-1-119-64850-5 (pbk); ISBN 978-1-119-74867-0 (ebk); ISBN 978-1-119-74868-7 (ebk) Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 Contents at a Glance Introduction . 1 Part 1: Getting Started with Networking . 5 CHAPTER 1: Let’s Network! . 7 CHAPTER 2: Configuring Windows and Mac Clients . 21 CHAPTER 3: Life on the Network . 37 CHAPTER 4: More Ways to Use Your Network . 57 Part 2: Designing Your Network . 73 CHAPTER 5: Planning a Network . 75 CHAPTER 6: Dealing with TCP/IP . 87 CHAPTER 7: Oh, What a Tangled Web We Weave: Cables and Switches . 111 CHAPTER 8: Setting Up a Wireless Network . 133 CHAPTER 9: Connecting to the Internet . 155 Part 3: Working with Servers . 165 CHAPTER 10: Virtualizing Your Network . 167 CHAPTER 11: Setting Up a Windows Server . 195 CHAPTER 12: Managing Windows User Accounts . 213 CHAPTER 13: Managing Network Storage . 231 Part 4: Managing Your Network . 251 CHAPTER 14: Welcome to Network Management . 253 CHAPTER 15: Supporting Your Users . .. 263 CHAPTER 16: Using Group Policy . 281 CHAPTER 17: Managing Software Deployment . 293 CHAPTER 18: Managing Mobile Devices . 305 Part 5: Securing Your Network . 317 CHAPTER 19: Welcome to Cybersecurity Network . 319 CHAPTER 20: Hardening Your Network . 337 CHAPTER 21: Securing Your Email . 349 CHAPTER 22: Backing Up Your Data . 361 CHAPTER 23: Planning for Disaster . 377 Part 6: More Ways to Network . 385 CHAPTER 24: Accommodating Remote Users . 387 CHAPTER 25: Life in Cloud City . 399 CHAPTER 26: Going Hybrid . 409 Part 7: The Part of Tens . 419 CHAPTER 27: Ten Networking Commandments . 421 CHAPTER 28: Ten Big Network Mistakes . 427 CHAPTER 29: Ten Things You Should Keep in Your Closet . 435 Index . 441 Table of Contents INTRODUCTION . 1 About This Book . 1 Foolish Assumptions . .. 2 Icons Used in This Book . 3 Beyond the Book . 3 Where to Go from Here . 4 PART 1: GETTING STARTED WITH NETWORKING . 5 CHAPTER 1: Let’s Network! . 7 Defining a Network . 8 Why Bother with a Network? . 11 Sharing files . 11 Sharing resources . 11 Sharing programs . 12 Sharing messages . 12 Servers and Clients . 13 Dedicated Servers and Peers . .. 13 What Makes a Network Tick? . .. 15 It’s Not a Personal Computer Anymore! . 16 The Network Administrator . 17 What Have They Got That You Don’t Got? . 18 CHAPTER 2: Configuring Windows and Mac Clients . 21 Configuring Windows Network Connections . .22 Joining a Windows Computer to a Domain . 27 Configuring Mac Network Settings . 29 Joining a Mac Computer to a Domain . 33 CHAPTER 3: Life on the Network . 37 Distinguishing between Local Resources and Network Resources . 38 What’s in a Name? . 38 Logging on to the Network . .40 Understanding Shared Folders . 42 Four Good Uses for a Shared Folder . 43 Store files that everybody needs . 43 Store your own files . 44 Make a temporary resting place for files on their way to other users . 44 Back up your local hard drive . 45 Table of Contents vii Oh, the Network Places You’ll Go . 45 Mapping Network Drives . 47 Using a Network Printer . 50 Adding a network printer . 51 Printing to a network printer . 52 Playing with the print queue . 53 Logging off the Network . .. 55 CHAPTER 4: More Ways to Use Your Network . 57 Sharing Your Stuff . 57 Enabling File and Printer Sharing . 58 Sharing a Folder . 59 Using the Public Folder . 61 Sharing a Printer . 62 Using Microsoft Office on a Network . 64 Accessing network files . 64 Using workgroup templates . 65 Networking an Access database . 67 Working with Offline Files . 68 PART 2: DESIGNING YOUR NETWORK . 73 CHAPTER 5: Planning a Network . 75 Making a Network Plan . 75 Being Purposeful . 76 Taking Stock . 77 What you need to know . 77 Programs that gather information for you . 79 To Dedicate or Not to Dedicate: That Is the Question . 80 File servers . 81 Print servers . 81 Web servers . 82 Mail servers . 82 Database servers . 83 Application servers . 83 License servers . 83 Choosing a Server Operating System . 83 Planning the Infrastructure . 84 Drawing Diagrams . 84 CHAPTER 6: Dealing with TCP/IP . 87 Understanding Binary . .. 88 Counting by ones . 88 Doing the logic thing . 89 viii Networking For Dummies Introducing IP Addresses . 90 Networks and hosts . 90 The dotted-decimal dance . 91 Classifying IP Addresses . 91 Class A addresses . 92 Class B addresses . 93 Class C addresses . 93 Subnetting . 94 Subnets . ..