I'm running Bitnami MEAN on an EC2 instance. I can host my app just fine on port 3000 or 8080. Currently if I don't specify a port I'm taken to the Bitnami MEAN homepage. I'd like to be able to access my app by directly from my EC2 public dns without specifying a port in the url. How can I accomplish this?
You'll have to open port 80 on the server's firewall, and either run your server on port 80 or forward port 80 to port 8080. You'll need to lookup the instructions for doing that based on what version of Linux you are running, but it is probably going to be an iptables command.
You'll also need to open port 80 on the EC2 server's security group.