AWS FAQ: Elastic Load Balancer

Elastic Load Balancing (ELB) distributes incoming application or network traffic across multiple targets to improve fault tolerance and scalability.

🗺️ Step-by-Step Instructions:

1. Create a target group with EC2 instances.
2. Create a load balancer (Application, Network, or Gateway).
3. Define routing rules and health checks.

📥 Example Input:

Type: Application Load Balancer
Protocol: HTTP
Port: 80

🏆 Expected Output:

Balanced and monitored traffic across registered targets.

✅ CLI ELB Example:

aws elbv2 create-load-balancer --name my-alb --subnets subnet-abc subnet-def --security-groups sg-123456

📘 Detailed Explanation:

• High Availability: Automatically reroutes traffic to healthy targets.
• Security: Integrates with WAF and SSL.
• Types: ALB (HTTP/HTTPS), NLB (TCP/UDP), GLB.

🛠️ Use Cases:

• Load balancing traffic to web servers.
• Routing based on URL patterns.
• High-throughput network routing.