Configuring the Application Load Balancer (ALB)

A load balancer serves as the single point of contact for clients. The load balancer distributes incoming application traffic across multiple targets, such as EC2 instances, in multiple availability zones. Balancing the load increases the availability of your application. AWS supports several types of load balancers: application, network, and (obsoleted) classic. In this section, you will configure an application load balancer (ALB).

The ALB needs to be configured with locations to balance requests; this is realized by target groups. During the installation process you will create target groups for various ports: 3000 (OMT installation), 5443 (OMT management portal), and 443 (ArcSight Suite configuration).