You're reading from Active Directory Administration Cookbook, Second Edition Proven solutions to everyday identity and authentication challenges for both on-premises and the cloud

Product type Paperback

Published in Jul 2022

Publisher Packt

ISBN-13 9781803242507

Length 696 pages

Edition 2nd Edition

Languages

PowerShell

Tools

Azure

Concepts

Identity Management

Author (1):

Sander Berkouwer

View More author details

Table of Contents (18) Chapters

Preface

1. Chapter 1: Optimizing Forests, Domains, and Trusts

2. Chapter 2: Managing Domain Controllers FREE CHAPTER

3. Chapter 3: Managing Active Directory Roles and Features

4. Chapter 4: Managing Containers and Organizational Units

5. Chapter 5: Managing Active Directory Sites and Troubleshooting Replication

6. Chapter 6: Managing Active Directory Users

7. Chapter 7: Managing Active Directory Groups

8. Chapter 8: Managing Active Directory Computers

9. Chapter 9: Managing DNS

10. Chapter 10: Getting the Most Out of Group Policy

11. Chapter 11: Securing Active Directory

12. Chapter 12: Managing Certificates

13. Chapter 13: Managing Federation

14. Chapter 14: Handling Authentication in a Hybrid World (AD FS, PHS, PTA, and DSSO)

15. Chapter 15: Handling Synchronization in a Hybrid World (Azure AD Connect)

16. Chapter 16: Hardening Azure AD

17. Other Books You May Enjoy

Chapter 9: Managing DNS

The Domain Name System (DNS) is an essential service on the internet. It also plays a vital role in Active Directory. DNS offers name resolution, which enables people to navigate functionality based on names instead of IP addresses. It also enables systems to find functionality, such as domain controllers.

Misconfigured DNS records, DNS zones, and DNS servers could result in the loss of functionality, unintentional information disclosure, and an increased vulnerability toward Meddler-in-the-Middle (MitM) attacks. Domain-joined systems use DNS records to locate domain controllers. Domain controllers delegate privileges based on serviceprincipalnames values, which, in turn, are also based on DNS names.

Most domain controllers also offer DNS, but this is not necessary. In many complex networking infrastructures, DNS is not offered by domain controllers but by dedicated DNS servers and dedicated appliances.

The following recipes are covered in this chapter...