Load balancing at layer 4 using DNS round robin
DNS Round Robin is the easiest way of load balancing. Although it's not as powerful as the other solutions, it doesn't require setting up a load balancing device. Instead, it's leveraging features in DNS that have already been there for a while. In this recipe we will guide you through the different steps of setting up DNS round robin using Windows DNS.
Getting ready
In order to execute the following tasks, you need access to the Windows DNS Management console for your domain. In order for load balancing to work properly, you need to ensure that all Client Access Servers are configured with the same certificate.
How to do it...
Open the DNS management console on one of your domain controllers.
Navigate to your internal DNS zone.
Right-click on the internal zone and select New Host (A or AAAA)....
Choose a name for the host. For example:
outlook.yourdomain.com.Enter the IP address of your first Client Access Server and click on OK.
Repeat step 3 to...
