Managing Azure Network Traffic with Network Security Groups

Azure Network Security Groups (NSG) are a core tool that enables you to control the network traffic flow within an Azure Virtual Network. A Network Security Group is a collection of stateful layer 3/4 allow/deny rules, that can be associated with either subnets or individual network interfaces. In this post I hope to cover the basics of how NSGs can be used to manage the traffic within an Azure environment and provide segmentation as part of a zero trust solution.