AWS Target Groups for ALBs

AWS’ ELB has 3 types: ALBs (Application Load Balancers), NLBs (Network Load Balancers) and Classic Load Balancers.

This diagram shows the basic components.


                The components of a basic Application Load Balancer

Listener

A Listener is a process that checks for connection requests based on the protocol and port you configure. Supported are:

Protocols: HTTP, HTTPS

Ports: 1- 65535

Listener rules

The rules defined for a listener set up how the LB routes requests to the targets in the target groups.

 

https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-listeners.html

https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-target-groups.html

 

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