- Flat! Yes, you shared with other AWS customers. Was great to make sure security was turned on (you could watch folks scanning internally at least that's my memory). This made it dirt simple, anything could connect with anything, even cross account.
- EC2 instances were the key items in the flat network (they switched to things like interfaces now which add lots of possible complexity - diagram is missing this).
- One private one public IP address (if desired). Simples.
The whole security story with all the layered possible permissions is crazy now. And the org->account model is clunky with a root account login. I think GCP get's this part better with its project model FWIW. That said, I don't discount what AWS provides.
- Flat! Yes, you shared with other AWS customers. Was great to make sure security was turned on (you could watch folks scanning internally at least that's my memory). This made it dirt simple, anything could connect with anything, even cross account.
- EC2 instances were the key items in the flat network (they switched to things like interfaces now which add lots of possible complexity - diagram is missing this).
- One private one public IP address (if desired). Simples.
The whole security story with all the layered possible permissions is crazy now. And the org->account model is clunky with a root account login. I think GCP get's this part better with its project model FWIW. That said, I don't discount what AWS provides.