Microsoft Azure Virtual Network
Network Security Groups
During this lecture, we'll explore the fundamentals of Microsoft Azure Virtual Network in Microsoft Azure Resource Manager (ARM). Virtual Networks are created as top-level entities within an ARM Resource Group. Each Virtual Network has one or more address spaces (prefixes / CIDR blocks) associated with it, and one or more subnets. A subnet can fill the entire space of an address prefix, or it can be defined as a subset of the available address space. In order to utilize Azure VPN Gateway, a Virtual Network must have a subnet named "GatewaySubnet" that is a /29, or larger.
Once a Virtual Network and its subnets have been created, resources can be provisioned into them, by associating each resource to one of the Virtual Network's subnets. For example, to connect a Virtual Machine to a Virtual Network subnet, you would create a Network Interface, associate it with the subnet, and then associate the Network Interface to the Virtual Machine's "network profile."
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About the Author
Trevor Sullivan is a Microsoft MVP for Windows PowerShell, and enjoys working with cloud and automation technologies. As a strong, vocal veteran of the Microsoft-centric IT field since 2004, Trevor has developed open source projects, provided significant amounts of product feedback, authored a large variety of training resources, and presented at IT functions including worldwide user groups and conferences.