AWS Client VPN Deployment & Configuration

Published: 16 February 2025
on channel: Raghuveer Singh
264
11

Securely Access Your AWS Private Resources with Client VPN | Step-by-Step Tutorial
In today’s remote-first world, securely accessing private cloud resources like EC2 instances, databases, or internal apps is critical. AWS Client VPN lets you connect to your Virtual Private Cloud (VPC) securely from anywhere, as if you’re on the same network! Whether you’re a developer, IT admin, or cloud enthusiast, this tutorial walks you through setting up AWS Client VPN from scratch.

Why You Need AWS Client VPN?
Imagine working from home but needing to access an EC2 instance in a private subnet without exposing it to the public internet. AWS Client VPN:
Encrypts traffic end-to-end.
Eliminates the need for bastion hosts or public IPs.
Let’s you connect using OpenVPN-based clients (Windows, macOS, Linux).
Integrates seamlessly with AWS services like ACM, VPC, and IAM.

What You’ll Learn in This Video:
✅ Step 1: Create a VPC with public and private subnets.
✅ Step 2: Launch an EC2 instance in a private subnet (your target resource).
✅ Step 3: Generate server/client certificates using OpenVPN EasyRSA.
✅ Step 4: Import certificates to AWS Certificate Manager (ACM).
✅ Step 5: Configure the AWS Client VPN endpoint and associate target networks.
✅ Step 6: Set up authorization rules for secure access.
✅ Step 7: Download and connect via AWS Client VPN.
✅ Step 8: Access your EC2 instance privately via RDP using its private IP!

Download the AWS Client VPN: https://aws.amazon.com/vpn/client-vpn...

Download EasyRSA: https://github.com/OpenVPN/easy-rsa/r...

Commands for EasyRSA to create server and client certificates and keys:
.\EasyRSA-Start.bat
./easyrsa init-pki
./easyrsa build-ca nopass
./easyrsa build-server-full server nopass
./easyrsa build-client-full client1.domain.tld nopass

Key Features Demonstrated:
End-to-end encryption for secure remote access.
Integration with AWS Certificate Manager (ACM) for certificate management.
Scalable architecture for teams or individual use.
Cross-platform compatibility (Windows/macOS/Linux).

Pro Tips:
Always restrict VPN authorization rules to least privilege.
Use multi-factor authentication (MFA) for added security.
Monitor connection logs in AWS CloudWatch.

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