** Featuring:
Networking
Subnetwork**
In the evolving digital ecosystem, cloud computing has become the structural backbone of business scalability and innovation. Among the leading cloud providers, Amazon Web Services (AWS) offers an advanced, flexible, and secure environment for hosting applications. One of its core services, Elastic Compute Cloud (EC2), provides virtualized computing resources that can be precisely tailored to organizational needs.
However, successful deployment on AWS requires more than spinning up an EC2 instance it demands networking intelligence, subnet structuring, and a clear understanding of how data flows across the AWS cloud.
The Core Framework: EC2 in a VPC Environment
An EC2 instance is a virtual server that runs your application. However, it exists inside a Virtual Private Cloud (VPC) which is your own isolated network on AWS. This defines resources communicate, which IP ranges they use, and how secure each layer should be.
This autonomy gives you control over data flow, access, and resilience.
Designing the Network: Subnets and Availability Zones
A subnet divides your VPC into smaller, functional zones. Each subnet resides in one Availability Zone (AZ), ensuring fault tolerance.
Public Subnets: For web servers and front-end layers that need internet access.
Private Subnets: For databases, app logic, or analytics engines that must remain internal.
By distributing workloads across multiple AZs, you achieve redundancy and high availability, protecting your application from data center failures.
Deployment Process
Step 1: Create a VPC:
Define your network CIDR block (e.g., 10.0.0.0/16).
Step 2 : Configure Subnets:
Create both public and private subnets across AZs for performance and security.
Step 3 : Set Up Gateways:
Internet Gateway (IGW): Enables access for public-facing resources.
NAT Gateway: Allows private subnets to initiate outbound internet traffic securely.
Step 4 : Launch EC2 Instances:
Select your Amazon Machine Image (AMI) (Ubuntu, Amazon Linux, etc.), instance type, and associate it with the correct subnet and security group.
Step 5 : Configure Security Layers:
Security Groups manage inbound/outbound instance-level rules.
Network ACLs operate at the subnet level, defining broader access rules.
Step 6 : Deploy and Automate:
SSH into the EC2 instance, upload your application, and start your services(e.g., Nginx,etc)
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