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Mastering Active Directory, Third Edition - Third Edition

You're reading from  Mastering Active Directory, Third Edition - Third Edition

Product type Book
Published in Nov 2021
Publisher Packt
ISBN-13 9781801070393
Pages 780 pages
Edition 3rd Edition
Author (1):
Dishan Francis Dishan Francis
Profile icon Dishan Francis

Table of Contents (22) Chapters

Preface 1. Active Directory Fundamentals 2. Active Directory Domain Services 2022 3. Designing an Active Directory Infrastructure 4. Active Directory Domain Name System 5. Placing Operations Master Roles 6. Migrating to Active Directory 2022 7. Managing Active Directory Objects 8. Managing Users, Groups, and Devices 9. Designing the OU Structure 10. Managing Group Policies 11. Active Directory Services – Part 01 12. Active Directory Services – Part 02 13. Active Directory Certificate Services 14. Active Directory Federation Services 15. Active Directory Rights Management Services 16. Active Directory Security Best Practices 17. Advanced AD Management with PowerShell 18. Hybrid Identity 19. Active Directory Audit and Monitoring 20. Other Books You May Enjoy
21. Index

What is DNS?

On mobile phones, we have phone books. If we need to save someone's phone number, how we do that? Do we just enter the number and save it? No. We save the number with the person's name or something we can remember, so the next time we open the contact list, we can easily find it. The same applies when you are dealing with IP addresses. I remember a few of the most commonly used IP addresses in my clients' infrastructure, but I do not remember most others. I remember lots of servers by their hostnames rather than their IP addresses. This is because hostnames are more user-friendly and are easier to remember than IP addresses. This is exactly what DNS does: it maps IP addresses to domain names or common terms that are user-friendly.

As I stated, there can be no functioning AD domain infrastructure without DNS. There are two main reasons why AD DS needs DNS:

  • Maintaining hierarchical infrastructure design: In the previous chapters, I talked about...
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