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Van Hoang Kha
Van Hoang Kha

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Networking on AWS - Part 1

Networking on AWS is an essential topic for anyone looking to create and deploy applications in the cloud. It is an essential component of any AWS deployment, and it is critical that you have a good understanding of how it works, what options are available, and how to configure it to meet your needs.

In this blog post, we will take a closer look at networking on AWS, starting with the basics.

Amazon Virtual Private Cloud (VPC)

The Amazon Virtual Private Cloud (VPC) is the foundation for networking on AWS. It is a virtual network that provides complete control over your network configuration. You can customize your VPC by creating subnets, configuring route tables, and setting up security groups.


A subnet is a range of IP addresses in your VPC. Each subnet must be associated with a route table that controls the traffic flow between subnets.

Route Tables

A route table is a set of rules that determines where network traffic is directed. You can configure your route tables to send traffic to the internet or to other subnets within your VPC.

Security Groups

Security groups act as a virtual firewall that controls inbound and outbound traffic to and from instances in your VPC. You can configure security groups to allow traffic from specific IP addresses or other security groups.

Internet Gateway

An internet gateway allows instances within your VPC to connect to the internet. It is an essential component if you want to deploy applications that require internet access.

Elastic IP Address

An Elastic IP address is a static IP address that you can associate with an instance in your VPC. This allows you to maintain the same IP address even if you stop and start the instance.

In conclusion, AWS networking is an essential component of any deployment in the cloud. Understanding the basics of VPCs, subnets, route tables, security groups, internet gateways, and elastic IP addresses is critical to ensuring that your applications are secure, reliable, and performant. In the next part of this series, we will take a closer look at how to set up and configure a VPC in AWS.

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