Step 2: Create your DNS Firewall rule groups to use in your policy
To follow this tutorial, you should be familiar with Amazon Route 53 Resolver DNS Firewall and know how to configure its rule groups.
You must have least one rule group in DNS Firewall that will be used in your Amazon Firewall Manager policy. If you haven't already created a rule group in DNS Firewall, do so now. For information about using DNS Firewall, see Amazon Route 53 Resolver DNS Firewall in the Amazon Route 53 Developer Guide.