Join Timothy Pintello for an in-depth discussion in this video Understanding what a domain controller does, part of Windows Server 2012: Install, Configure, and Administer Active Directory.
- In this course we were talking about Active Directory, but before we talk about Active Directory, we really need to talk about domain controllers. What a domain controller does is it allows you to create logical containers. These containers can contain such things as users, computers, and groups. The domain controller also allows you to organize your containers. Finally, the domain controller makes it easier to manage your containers as well.
One thing to keep in mind about domain controllers is you should really have more than one controller. A second domain controller provides redundancy. What that means is if one server goes down, you have a second server to take up the slack for it. A second domain controller can also allow you to set up fault tolerance. In a fault tolerance system if something goes down, one server can seamlessly take up the slack for the other server. Finally, having multiple domain controllers can also allow you to have load balancing on your network.
Active Directory is the service that is running on your domain controller. Active Directory is the service that is used to create the logical containers previously mentioned. The performance of Active Directory is directly affected by the server hardware. The better your server hardware, the more efficient your Active Directory will work. Your network's capabilities can also affect how well your Active Directory will work, and especially in the situation of a WAN connection.
In a WAN connection, you're connecting different sites together. Having a separate domain controller with Active Directory in each site will make your network run much more quickly and more efficiently. Finally, you want to make sure that you test your domain controller and Active Directory thoroughly before you release control of your network to it.
- Understanding what a domain controller does
- Adding and removing domain controllers
- Configuring a global catalog server
- Creating and managing users and computers in Active Directory
- Working with groups and organizational units