AWS Load Balancer Explained | Setup & Testing Step by Step

Welcome to Learn More Technologies! 🚀
In this video, you’ll learn AWS Load Balancer and see a complete hands-on demo on how to set up an Application Load Balancer (ALB) and test it.

Load balancing is a critical concept for building highly available and scalable cloud applications, and this tutorial explains it in a simple, practical way.

⚙️ What You Will Learn in This Video:
1️⃣ What is a Load Balancer?

Definition & purpose

How load balancing works

Benefits: high availability & fault tolerance

2️⃣ Types of AWS Load Balancers

Application Load Balancer (ALB)

Network Load Balancer (NLB)

Classic Load Balancer (overview)

3️⃣ Architecture Overview

VPC & public subnets

EC2 instances in multiple AZs

Target Group

Application Load Balancer

4️⃣ Hands-On: Set Up Load Balancer (Step by Step)
🔹 Launch EC2 Instances

Create 2 EC2 instances

Install web server (Apache / Nginx)

Configure security groups

🔹 Create Target Group

Register EC2 instances

Configure health checks

🔹 Create Application Load Balancer

Internet-facing ALB

Choose subnets

Attach target group

5️⃣ Test the Load Balancer

Access ALB DNS name in browser

Refresh page to verify traffic distribution

Stop one EC2 instance to test failover

Confirm health check behavior

6️⃣ Benefits of Using Load Balancer

Automatic traffic distribution

Health checks & failover

Scalability & performance

Integration with Auto Scaling

🎯 Who Should Watch This?

✔ AWS beginners
✔ Cloud & DevOps engineers
✔ Students preparing for AWS certifications
✔ Anyone learning scalable cloud architecture

📌 Why Learn Load Balancer Setup & Testing?

Load balancers are used in real-world AWS applications to ensure reliability, performance, and zero downtime.

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