How do I configure and attach a security group to my Elastic Load Balancing load balancer?

If you're using a Classic Load Balancer, follow the instructions at Manage Security Groups Using the Console or Manage Security Groups Using the AWS CLI.

If you're using an Application Load Balancer, follow the instructions at Security Groups for Your Application Load Balancer.

If you're using a Network Load Balancer, update the security groups for your target instances, because Network Load Balancers do not have associated security groups.

Note: Be sure that you associate at least one security group with each Classic or Application Load Balancer, and that the security group allows connections between the load balancer and associated backend instances.


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Published: 2016-10-14

Updated: 2018-07-24