Book Image

Mastering Active Directory, Third Edition - Third Edition

By : Dishan Francis
5 (2)
Book Image

Mastering Active Directory, Third Edition - Third Edition

5 (2)
By: Dishan Francis

Overview of this book

Mastering Active Directory, Third Edition is a comprehensive guide for Information Technology professionals looking to improve their knowledge about MS Windows Active Directory Domain Service. The book will help you to use identity elements effectively and manage your organization’s infrastructure in a secure and efficient way. This third edition has been fully updated to reflect the importance of cloud-based strong authentication and other tactics to protect identity infrastructure from emerging security threats. Mastering Active Directory, Third Edition provides extensive coverage of AD Domain Services and helps you explore their capabilities as you update to Windows Server 2022. This book will also teach you how to extend on-premises identity presence to cloud via Azure AD hybrid setup. By the end of this Microsoft Active Directory book, you’ll feel confident in your ability to design, plan, deploy, protect, and troubleshoot your enterprise identity infrastructure.
Table of Contents (22 chapters)
20
Other Books You May Enjoy
21
Index

AD recycle bin

When an object is deleted from AD, it is not permanently deleted. As soon as an object is deleted, the system will set the isDeleted attribute value to True and move the object to CN=Deleted Objects:

Figure 7.29: Deleted AD object

Then, the deleted object will stay there until the system reaches the tombstone lifetime value. By default, this is 180 days, and it can be changed if required. As soon as the object passes the tombstone lifetime value, it can be permanently deleted.

An essential function of an AD database is online defragmentation. This process uses the garbage collector service to remove deleted objects from the AD database and release space back to the database. This service runs every 12 hours. Once the deleted object exceeds the tombstone lifetime value, the object will be permanently removed in the next garbage collector service cycle. The problem with this is that during the tombstone process, most of the object values are stripped...