I'm trying to add a second Network Interface to my EC2 instance to host a 3rd website on said instance (Linux, t2.micro). I only have type EC2-VPC available. From the EC2 Dashboard, I choose Actions -> Networking -> Attach Network Interface. It gives me the following warning:
If you attach another network interface to your instance, your current public IP address is released when you restart your instance.
Does that do exactly what it sounds like? I don't plan on rebooting the instance, but if I do, do I just have to re-associate my Elastic IPs with the Public ones for the existing two domains to be available?