I have deployed Parse Server and Dashboard into their own containers on Amazon AWS ECS. They are on the same EC2 instance. They are published on ports 1337 & 4040 respectively.
To access from my browser, I need to add in a security group rule for BOTH these ports from my IP (I don’t want to allow 0.0.0.0/0…).
Why do I need the 1337 port to be open to use Dashboard in my browser? I thought connectivity between the 2 would occur inside the VPC of my ECS host / instance which wouldn’t need any ports opening except the 4040 for the Dashboard itself.