Introducing Azure network security
At its foundation, the Azure networking plane in regard to private addressing consists of a VNET containing a defined address space. Just like traditional networking concepts, the VNET can then be further segmented into subnets, where resources are assigned to a designated space. Resources inside the same VNET are typically allowed to communicate with each other as well as with other Azure services using the underlying networking fabric or service endpoints. Depending on the networking topography in your environment, if you need to enable communications into other VNETs, a feature known as VNET peering will allow cross-VNET communication. When protecting your Windows resources in Azure, there are a few features available for controlling traffic flow inbound and outbound to your endpoints. Using a combination of User-Defined Routing (UDR), NSGs, Azure Firewall, and Network Virtual Appliances (NVAs) will help ensure communications are locked down to...