Elastic Load Balancing (ELB)
ELB automatically distributes incoming application traffic across multiple targets, such as EC2 instances.
Types of Load Balancers:
- Application Load Balancer (ALB): Layer 7 (HTTP/HTTPS). Routing based on URL path or hostname.
- Network Load Balancer (NLB): Layer 4 (TCP/UDP). Used for high-performance or static IPs.
- Gateway Load Balancer (GWLB): For 3rd party virtual appliances.