Introduction to VPC

Learn about Virtual Private Clouds, subnets, CIDR blocks, Internet Gateways, and how to design secure network architectures.

vpc-config.json
{
"CidrBlock": "10.0.0.0/16",
"EnableDnsHostnames": true,
"EnableDnsSupport": true
}
vpc-config.json
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Tutor:VPC (Virtual Private Cloud) is your own isolated network environment in AWS. It's logically isolated from other virtual networks in AWS, giving you complete control over your networking environment including IP address ranges, subnets, routing, and security.


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Concept 1: VPC Basics

A VPC (Virtual Private Cloud) is a logically isolated section of the AWS Cloud where you can launch AWS resources in a virtual network that you define. It's like having your own private data center in the cloud.

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Introduction to VPC (Virtual Private Cloud)

Author

Pascual Vila

Cloud Instructor.

VPC (Virtual Private Cloud) is your own isolated network environment in AWS. It's logically isolated from other virtual networks in AWS, giving you complete control over your networking environment including IP address ranges, subnets, routing, and security.

VPC Basics

When you create a VPC, you specify an IPv4 CIDR block (e.g., 10.0.0.0/16). This defines the IP address range for your VPC. You can also add IPv6 CIDR blocks. Each VPC is isolated from other VPCs by default.

Subnets

Subnets are subdivisions of your VPC. You create subnets in specific Availability Zones. Public subnets have routes to the Internet Gateway, while private subnets don't. This allows you to control which resources can access the internet.

Best Practices

Use multiple Availability Zones for high availability, separate public and private subnets, use NAT Gateways for outbound internet access from private subnets, implement proper security groups, and use VPC Flow Logs for monitoring.

VPC Glossary

VPC (Virtual Private Cloud)
Your own isolated network environment in AWS. Logically isolated from other virtual networks, giving you complete control over IP address ranges, subnets, routing, and security.
CIDR Block
A range of IP addresses specified in CIDR notation (e.g., 10.0.0.0/16). Defines the IP address range for your VPC. The /16 means the first 16 bits are the network portion.
Subnet
A subdivision of your VPC created in a specific Availability Zone. Public subnets have routes to the Internet Gateway, while private subnets don't.
Route Table
Controls where network traffic is directed. Each subnet must be associated with a route table. The main route table is used by default, but you can create custom route tables.
Internet Gateway (IGW)
Enables communication between your VPC and the internet. Horizontally scaled, redundant, and highly available. You attach one IGW to your VPC and configure route tables to use it.