Nandhakumar Sellappan
If we have configured ALB for 3 different EC2 web server, which URL we have to use to browse? Since each web server has own public IP?
1 Answers
lecube
Just to clarify, the ARN is not the DNS name. Those are 2 different attributes for a load balancer. ALB’s themselves cannot have a static IP address (Network load balancers can have a static IP). There are 2 ways you can in a way assign a static IP to an ALB: global accelerator and putting an NLB in front of an ALB (an ALB can be a target for an NLB).
You use the load balancer’s DNS name. Ex open your load balancer – Description tab – DNS name arn:aws:elasticloadbalancing:us-east-1:437577725247:loadbalancer/app/myloadbalancer/92be3d9baf5161b2
Agree, by default the load balancer provides a DNS for you to use (..elb.amazonaws.com). It’s also possible to configure a static IP address when you configure the ELB if needed. In practice you only want web browsers to know about the ELB URL which will then foward the request to a registered instance.