Describe Azure Firewall and Web Application Firewall

The solutions that will be discussed in this section can be thought of as protecting at multiple layers of the Defense in Depth strategy. Azure Firewall has security capabilities that can be viewed on both the perimeter and network security layers. In addition to these layers, Web Application Firewall can also be viewed as a security solution at the application layer.

Let's discuss the Azure Firewall solution and how it is used.

Describe Azure Firewall

Azure Firewall is a stateful firewall as a service within Azure. Azure Firewall provides a highly available and unrestricted scalable firewall solution. Figure 8.22 shows the architecture of Azure Firewall in an Azure network. Azure Firewall is placed in a separate subnet to isolate traffic from resources on other subnets. Firewalls provide packet inspection for malicious activity as well as inbound and outbound rules, similar to an NSG. The difference between the rules...