Lab 4: Introduction to F5 Distributed Cloud DNS

This lab provides an introduction to DNS services available on F5 Distributed Cloud. This lab will demonstrate where to configured Delegated DNS, Primary and Secondary DNS, and DNS Load Balancing. All configuration will be made via the F5 Distributed Cloud Console and within the F5 Distributed Cloud Global Network services architecture.

Task 1: Delegated DNS

This task reviews where to configure a Delegated DNS Domain.

If you are not still logged into the F5 Distributed Console, login. If you are on the Main Dashboard Select the DNS Management tile or if you are already in one of the services you can select DNS Management from the Select service dropdown.

In the left-hand navigation menu, expand the Manage section and click the Delegated Domain Management link. Notice that the lab-sec.f5demos.com domain has been delegated to this tenant. Delegated domains allow Distributed Cloud to automatically create DNS entries for objects configured within Distributed Cloud. You utilized this feature to create a DNS entry for your application in Lab 1.

Task 2: Primary and Secondary DNS

The following steps will demonstrate where DNS features are configured within the F5 Distributed

Cloud Console. This task reviews where to configure Primary and Secondary DNS for a zone.

In the left-hand navigation menu, under the Manage section click the DNS Management link. Click the Add DNS Zone button.

In the resulting window note the Domain Name field. This is where you enter the zone domain name that Distributed Cloud will provide DNS responses for. Note the Zone Type dropdown under the DNS Zone Configuration section. This is where you select if Distributed Cloud will be a Primary or Secondary DNS server for the DNS zone specified. Click Cancel and Exit to close this window. Note Your current role does not have permissions to create Primary or Secondary DNS Zones. If you click Save and Exit you will receive an error message stating you do not have access with your current role.

Task 3: DNS Load Balancers

This task reviews where to configure DNS Load Balancing. This task demonstrates where to

configure DNS Load Balancer Health Checks, DNS Load Balancer Pools, and DNS Load Balancers.

In the left-hand navigation menu, under the Manage section expand the DNS Load Balancer Management section and select DNS Load Balancer Health Checks. Click the Add DNS Load Balancer Health Check button.

In the resulting window note the available Health Check Types under the Health Check Type dropdown. This is where you can select the type of health check that will be utilized to verify the application is available. Click Cancel and Exit to close this window. Note Your current role does not have permissions to create DNS Load Balancer Health Checks. If you click Save and Exit you will receive an error message stating you do not have access with your current role.

In the left-hand navigation menu, under the Manage section expand the DNS Load Balancer Management section and select DNS Load Balancer Pools. Click the Add DNS Load Balancer Pool button.

In the resulting window note the available pool member types by expanding the Pool Type dropdown. This is where you can select the type of pool member that will be DNS load balanced. Select A from the Pool Type dropdown. Click Add Item in the Pool Members section. In the resulting window note the Public IP field. This is where you specify the the public IP of the pool member. Also note the Load Balancing Ration and Load Balancing Priority fields. These values control how the pool member will be load balanced. Click Cancel and Exit Note Your current role does not have permissions to create DNS Load Balancer Pools. If you click Save and Exit you will receive an error message stating you do not have access with your current role.

In the left-hand navigation menu, under the Manage section expand the DNS Load Balancer Management section and select DNS Load Balancers. Click the Add DNS Load Balancer button.

In the resulting window note the available record types by expanding the Record Type dropdown. This is where you can select the type of DNS record to provide by the DNS load balancer. Select Configure from the Load Balancing Rule List section. In the resulting window click the Add Item Button. In the resulting window click Add Label under the Selector Expression. Note the available Geo Location Selectors. Click outside the dropdown to close the dropdown. Note the Use DNS Load Balancer pool dropdown. This is where you select the pool to to be used with this Load Balancing Rule. Click Cancel and Exit Note Your current role does not have permissions to create DNS Load Balancers. If you click Save and Exit you will receive an error message stating you do not have access with your current role.

End of Lab 4: This concludes Lab 4. In this lab you reviewed where to configure Delegated DNS, Primary and Secondary DNS, and DNS Load Balancing. Distributed Cloud supports multiple DNS deployment models to satisfy different design goals. A brief presentation will be shared prior to the beginning of Lab 5.