In this video, we create a hub and spoke network in Azure by peering our spoke VNet’s to a centralized, Hub Virtual Network. Then we use a VPN Virtual Network Gateway to enable gateway transit connectivity between the spokes. Next, we configure routing with Azure Route Tables and User Defined Routes (UDR) to send traffic going to other spokes to the hub. Then we log into a virtual machine and verify connectivity.
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Azure Virtual Machines have access to the internet by default. We can control the public IP address used for internet access with private IP’s, load balancers, and firewalls. This video looks at another option, an Azure NAT Gateway. An Azure NAT Gateway attaches to a subnet and once attached, all VM’s on that subnet use the NAT Gateway for internet access.
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This is the first of a series of videos on Computer Networking Basics. In this video, we go over the OSI model and how it aligns with TCP/IP. This is the basic fundamental to understanding a computer network.
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This video goes over two Azure IP addresses used for Azure VM’s. The WireServer IP of 168.63.129.16 and the Azure Instance Metadata Service (IMDS) IP address 169.254.169.254. In the video, I go over what each is used for and then give a demonstration on using the WireServer IP address to query DNS. After that, I use the IMDS REST Endpoint to pull metadata including the Azure environment and scheduled events.
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