Networking in AWS and EC2
AWS provides fine-grain control at the networking level. As with any physical data center, you can define your own networks, but AWS has a higher-level abstraction concept: The Virtual Private Cloud.
Amazon Virtual Private Cloud (Amazon VPC) is a segment of the AWS cloud that allows you to group and segregate your resources in subnetworks to organize and plan your infrastructure matching your requirements. It also allows you to create a VPN between AWS and your physical data center to extend the latter one, adding more resources from AWS. Also, when you create a resource in EC2, you have the possibility of creating the resource in your custom defined subnet within your VPC.
Before jumping into what a VPC looks like, ...
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