Office 365 for IT Professionals 2020 Edition
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Office 365 for IT Pros Page 1 Office 365 for IT Pros Office 365 for IT Professionals (2020 Edition) Published by Tony Redmond © Copyright 2015-2019 by Tony Redmond. All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means without the written permission of the authors. The example companies, organizations, products, domain names, email addresses, logos, people, places and event depicted herein are fictitious. No association with any real company, organization, people, domain name, email address, logo, person, place, or event is intended or should be inferred. The book expresses the views and opinions of the authors. The information presented in the book is provided without any express, statutory, or implied warranties. The authors cannot be held liable for any damages caused or alleged to be caused either directly or indirectly by this book. Although the authors are members of Microsoft’s Most Valuable Professional (MVP) program, the content of this book solely represents their views and opinions about Office 365 and any other technologies mentioned in the text and is not endorsed in any way by Microsoft Corporation. Please be respectful of the rights of the authors and do not make copies of this eBook available to others. Sixth (2020) edition. Previous editions: • Office 365 for Exchange Professionals (May 2015 and September 2015). • Office 365 for IT Pros (3rd edition – June 2016). • Office 365 for IT Pros (4th edition – June 2017). • Office 365 for IT Pros (5th edition – July 2018) The authors issue regular updates for this eBook until they publish a new edition, usually after a year. People who buy the book through gumroad.com can use their accounts to download updates as they become available. Updates are also available for the Kindle edition, but this depends on the willingness of Amazon to make purchasers aware that an update exists. We try to persuade Amazon of this need about once a month. Information about how to access updated files can be found in our FAQ. The companion volume for this book has other information that you might find interesting. The companion volume is included in your subscription and is updated separately. This is update 1 for the 2020 Edition published on 1 August 2019. You can find information about the changes made in each update in our change log or through our Facebook page. The photo used on the front cover is of a Galapagos giant tortoise taken on Santa Cruz island by Tony Redmond in February 2018. Page: i Office 365 for IT Pros Office 365 for IT Pros Table of Contents Foreword ......................................................................................................................................................................................................... xi Introduction .................................................................................................................................................................................................. xii Organization of this book................................................................................................................................................................... xii Highlighting the important stuff..................................................................................................................................................... xiii Book Updates ......................................................................................................................................................................................... xiv The Author Team .................................................................................................................................................................................. xiv Thanks ...................................................................................................................................................................................................... xvii Sponsor content ................................................................................................................................................................................... xvii Comments and feedback ................................................................................................................................................................. xviii Chapter 1: An Overview of Office 365 .................................................................................................................................................. 1 Office 365 Infrastructure ....................................................................................................................................................................... 2 Office 365 Plans ..................................................................................................................................................................................... 13 The Commercial Success of Office 365 ........................................................................................................................................ 21 Competition for Office 365 ............................................................................................................................................................... 23 Leveraging the Breadth of Office 365 ........................................................................................................................................... 26 Will we move? ........................................................................................................................................................................................ 28 Chapter 2: Embracing the Cloud ......................................................................................................................................................... 29 Removing Cloud FUD .......................................................................................................................................................................... 29 Interpreting Service Level Agreements for Office 365 Services ......................................................................................... 38 Making the Decision to Embrace the Cloud .............................................................................................................................. 42 The Economic Imperative .................................................................................................................................................................. 44 Creating a Network to Support Cloud Services ........................................................................................................................ 48 Executive Buy-in and Communications ........................................................................................................................................ 51 Dipping Your Feet into The Water ................................................................................................................................................. 52 Office 365 Partners ............................................................................................................................................................................... 53 The Value of Hybrid Connectivity ................................................................................................................................................... 55 The Need for Plan B ............................................................................................................................................................................. 55 Cancelling a Tenant Subscription ................................................................................................................................................... 57 Identities ................................................................................................................................................................................................... 58 Chapter 3: Identities and Authentication ......................................................................................................................................... 59 Azure Active Directory ........................................................................................................................................................................ 60 Identity Models for Office 365 ......................................................................................................................................................... 62 Authentication ........................................................................................................................................................................................ 71 Synchronizing with Azure Active Directory ................................................................................................................................ 88 Page: ii Office 365 for IT Pros Office 365 for IT Pros Connecting to LinkedIn .................................................................................................................................................................... 111 Managing a Tenant ............................................................................................................................................................................ 112 Chapter 4: Managing Office 365 ......................................................................................................................................................