Book Image

Mastering Active Directory

By : Dishan Francis
Book Image

Mastering Active Directory

By: Dishan Francis

Overview of this book

Active Directory is a centralized and standardized system that automates networked management of user data, security, and distributed resources and enables interoperation with other directories. If you are aware of Active Directory basics and want to gain expertise in it, this book is perfect for you. We will quickly go through the architecture and fundamentals of Active Directory and then dive deep into the core components, such as forests, domains, sites, trust relationships, OU, objects, attributes, DNS, and replication. We will then move on to AD schemas, global catalogs, LDAP, RODC, RMS, certificate authorities, group policies, and security best practices, which will help you gain a better understanding of objects and components and how they can be used effectively. We will also cover AD Domain Services and Federation Services for Windows Server 2016 and all their new features. Last but not least, you will learn how to manage your identity infrastructure for a hybrid-cloud setup. All this will help you design, plan, deploy, manage operations on, and troubleshoot your enterprise identity infrastructure in a secure, effective manner. Furthermore, I will guide you through automating administrative tasks using PowerShell cmdlets. Toward the end of the book, we will cover best practices and troubleshooting techniques that can be used to improve security and performance in an identity infrastructure.
Table of Contents (20 chapters)

Seize FSMO roles

In the previous section, I explained how to transfer FSMO roles from one domain controller to another. But there are certain situations where we will not be able to transfer the FSMO roles, such as the following:

  • Hardware failures: If the domain controller that holds the FSMO roles failed due to hardware issues and there is no other way to bring it back online, it is possible to seize the FSMO roles. However, if the failed server is protected by a backup DR solution, it's still worth going through that process than the seize process because it will still be able to recover the domain controller in the most up-to-date, usable status.
  • System operation issues: If the domain controller has issues such as operating system corruptions, viruses, malware, file corruptions, it may not be allowed to transfer the FSMO role to another domain controller, which will also...