Filtering traffic with NSGs
When we deployed the ADX cluster, the deployment also updated our route table and NSG. The route table was updated to route specific cluster traffic to the internet, as shown in the following screenshot:
Figure 10.21 – User-defined routing
These routes ensure our cluster can still communicate with Azure Monitor and ADX cluster management.
In the next section, we will learn what they are, how they work, and why we should use them. Once we understand the theory, we will update our NSG by adding a new security rule to allow traffic to our ADX cluster.
Introducing NSGs
Before we add any security rules to our NSG, let's spend some time discussing what they are, how they work, and why we should use them.
NSGs are one of the fundamental security-related building blocks in Azure. NSGs allow us to filter both inbound and outbound traffic in an Azure Virtual Network. NSGs can be assigned to subnets and Network...
