Book Image

Active Directory Administration Cookbook

By : Sander Berkouwer
Book Image

Active Directory Administration Cookbook

By: Sander Berkouwer

Overview of this book

Active Directory is an administration system for Windows administrators to automate network, security and access management tasks in the Windows infrastructure. This book starts off with a detailed focus on forests, domains, trusts, schemas and partitions. Next, you'll learn how to manage domain controllers, organizational units and the default containers. Going forward, you'll explore managing Active Directory sites as well as identifying and solving replication problems. The next set of chapters covers the different components of Active Directory and discusses the management of users, groups and computers. You'll also work through recipes that help you manage your Active Directory domains, manage user and group objects and computer accounts, expiring group memberships and group Managed Service Accounts (gMSAs) with PowerShell. You'll understand how to work with Group Policy and how to get the most out of it. The last set of chapters covers federation, security and monitoring. You will also learn about Azure Active Directory and how to integrate on-premises Active Directory with Azure AD. You'll discover how Azure AD Connect synchronization works, which will help you manage Azure AD. By the end of the book, you have learned about Active Directory and Azure AD in detail.
Table of Contents (16 chapters)

What do Active Directory sites do?

Active Directory sites govern access and replication.

Active Directory's DClocator process allows for devices to find the nearest domain controller. By default, these would be the domain controllers in the current Active Directory site where the device resides. The way the device knows in which site it resides is derived from its IP address, which matches a subnet, as defined for the Active Directory site.

When there are no domain controllers in an Active Directory site, the site link costs define the nearest domain controller to DClocator. The domain controllers in the site connected with the lowest cost will be returned to the device.

Domain controllers in different Active Directory sites replicate partitions over the same Active Directory site links through bridgehead servers; these are domain controllers that take on the additional role...