VPC - Virtual Private Cloud

• VPC is a Logical Datacenter in AWS consist of Virtual Private Gateways, Network Access Control Lists, Subnets and Security Groups.
• 1 Subnet = 1 Availability Zone
• Security Group is Stateful - If you open any port eg: 443 it automatically opens inbound and outbound for it.
• Access Control List is Stateless - If you open any port eg: 443 it will not automatically open inbound and outbound for it. You have to do it manually.
• ​VPC Peering is possible in Star Formation - 1 Central VPC can be pair with the 4 VPC and no transit peering is allowed.

What is created by default when you create a VPC?

• Network ACL
• Security Group
• Route Table

​Resources 

• https://cidr.xyz