Implementing IP Whitelisting in AWS Security Groups

This project demonstrates how to implement IP whitelisting in AWS Security Groups to control inbound access to cloud resources.

The solution ensures that only trusted IP addresses can connect, improving security posture and reducing exposure to unauthorized access.

Restrict inbound access to an EC2 instance (or other AWS resources) using IP-based filtering.
Comply with security policies for least privilege access.
Automate the process using AWS CLI / Terraform / AWS Management Console (depending on what you did).

(Insert a simple diagram here — AWS icon for EC2, Security Group, allowed IP list, blocked traffic from unknown IPs)

Service	Purpose
VPC	Isolated network environment.
EC2 Instance	Target resource to protect.
Security Group	Virtual firewall controlling inbound/outbound traffic.
AWS CLI / Console	Interface for configuration.
IAM	Permissions to manage networking and security settings.

Get the public IP address(es) that should have access (e.g., using https://whatismyipaddress.com).
Store them in a text file or variable for automation.