In this section, I talk about why VPCs were invented and how they work. This is critical to understand because almost everything you do in AWS will ha

An illustrated guide to Amazon VPCs - by Aditya Bhargava

submited by

Style Pass

2025-01-19 12:00:06

In this section, I talk about why VPCs were invented and how they work. This is critical to understand because almost everything you do in AWS will happen inside of VPC. If you don't understand VPCs, it will be difficult to understand any of the other networking concepts.

I'll help you learn about all those pieces. A little about me, I’m a long-tailed duck, and I run a business selling phones to hackers, called Blackhatberry. Now let's get started.

This is the story of VPCs, our first big topic. Many moons (and suns) ago, some AWS engineers were sitting in a room. They had a serious issue.

"Maybe because all instances run in a single shared network, which means users can access each other's instances, and see each other's data," someone said.

"Maybe because it's hard for them to move their existing servers to AWS, because of IP address conflicts," someone else said.