An AD environment with replication issues is a disaster; it can cause all sorts of problems. AD uses a multi-master database. A change made on one domain controller should be advertised to other domain controllers to maintain consistency. The two types of replication in an AD environment are as follows:
- Intra-site replication: Replication between domain controllers in the same AD site
- Inter-site replication: Replication between domain controllers in different AD sites
In Chapter 11, Active Directory Services, we looked at exactly how both types of replication work. I encourage you to refer to it and refresh your memory before we proceed.
There is no smoke without fire. When there are replication issues, we can see the following symptoms in the infrastructure:
- New user accounts experience authentication issues with their systems and...
