Summary

This chapter examined Amazon's core network services, comprising VPCs, Amazon's DNS service offering with Route53, and Amazon's CDN solution with Amazon CloudFront.

In this chapter, you learned how computers communicate with each other via IP addresses. You also learned that using IP addressing and CIDR block ranges, you can build isolated networks and subnetworks. We then discussed how you can build the same network architecture in the cloud using the Amazon VPC service. As part of setting up your VPC, you examined the use cases to build private and public subnets and explored tools for defining security rules and limiting the types of traffic that can enter and leave your VPC. We also looked at additional VPC services that enable you to interconnect multiple VPCs using VPC peering and how to build complex connections more easily across VPCs using AWS Transit Gateway.

Next, we learned about the AWS Route53 service, a DNS offering that provides domain name...