Step 4: Next, create an FW rule that will deny traffic to the Blocked Sites AO Group.
Allowing Specific Domains and Blocking All Others with Firewall Rules
With firewall rules you can block HTTP/HTTPS traffic for all traffic except for the defined list you’ve created. First, create the address objects of the websites you want to allow. In the following example, we will allow http://www.sonicwall.com and https://www.mysonicwall.com and deny all other HTTP/HTTPS traffic.
Step 1: Navigate to Network > Address Objects and Add an Address Object for sonicwall.com.
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