I am Melfred Bernabe. In this challenge, we would deploy an application to 2 servers inside a virtual network in AWS. The network will have two tiers: private and public. Our result will be:

Visit my web: https://melfredbernabe.me/

FINAL PROJECT OUTPUT: https://app.melfred.dev/

[A] Basic VPC Skeleton

Let's build the backbones of our VPC network. You'll be creating:

• VPC (how)
• 2 Private Subnets (deployed in separate Availability Zones, how
• 2 Public Subnets (deployed in separate Availability Zones)
• 1 Internet Gateway (connected to the VPC we just created)
• 1 NACL for both subnets (with a rule that allows all traffic)
• 1 Route Table (for Private Subnets, how)
• 1 Route Table (for Public Subnets)

In this exercise, you must be able to answer the following guide questions:

1. What makes a subnet private? What makes it public?
2. What is an IPv4 CIDR block? What is the difference between /16, /20 and /24?
3. Why do we deploy subnets in different availability zones?

[A] Step by Step: Basic VPC Skeleton

Question A: Answers