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1

Use a VPC peering between the two accounts so that your instance from account A will be able to communicate with account B. This will work if you have different subnet CIDR blocks in the two accounts. If you have the same (i.e. in both VPC, your subnets are in 192.168.0.0/16), then change the one that has the least impact and proceed with a VPC peering. ...


3

There are a couple of things that you can rule out, thanks to the testing that you have already done. You know your container port has an active network socket, that is listening for and accepting connections. You also know that your EC2 instance has working networking. I can think of three obvious problems: Your host is using local DNS resolution to ...


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