In this module, you have acquired the skills needed to implement Active Directory into your network or the one you are
administering. More specifically, you learned how to complete the following tasks:
- Create sites
- Create subnets
- Move server objects between sites
- Create site links
- Create connection objects to override the default replication topology
- Create a global server catalog
The Global Catalog is a distributed data repository that contains a searchable, partial representation of every object in an Active Directory Domain Services (AD DS) forest. The Global Catalog is created automatically when the first domain in a new forest is created.
To designate a domain controller as a Global Catalog server, follow these steps:
- Open the 'Active Directory Sites and Services' tool. You can access this from the Administrative Tools folder on your domain controller.
- Expand the 'Sites' container in the left pane of the console until you find the server that you want to make a Global Catalog server.
- Expand the chosen server node, and you will find an object called 'NTDS Settings'.
- Right-click on 'NTDS Settings' for the chosen server, and then click 'Properties'.
- In the 'NTDS Settings Properties' dialog box that opens, check the 'Global Catalog' checkbox to enable the server as a Global Catalog server.
- Click 'OK' to confirm the changes. The server is now designated as a Global Catalog server.
Active Directory will begin to replicate the necessary additional information to the new Global Catalog server. This process might take a while, depending on the size of your AD DS environment. Please note that it's important to plan the placement of your Global Catalog servers wisely to ensure network efficiency. Ideally, you should have at least one Global Catalog server in each site to ensure that users can log in to the network and access resources efficiently. Additionally, keep in mind that a Global Catalog server holds a partial replica of every object in the forest, so it can use more disk space and generate more replication traffic. These factors should be taken into account when planning your Active Directory infrastructure.