Azure Virtual machines & network interface cards (NICs)
Notes compiled from official Azure documentation - When you create an Azure virtual machine (VM), you must create a virtual network (VNet) or use an existing VNet When creating a virtual machine using the Azure portal, the portal creates a network interface with default settings for you. A network interface enables an Azure Virtual Machine to communicate with internet, Azure, and on-premises resources. Before creating a network interface, you must have an existing virtual network in the same location and subscription you create a network interface in. You assign IP addresses to a VM using a network interface. Once a network interface is created, you cannot change the virtual network it is assigned to. You can change the subnet the network interface is assigned to after it's created. The virtual machine you add the network interface to must also exist in the same location and subscription as the network interface. The virtual machine you attach a network i...