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I want to connect different hosts that are in different sites in EC2, in a way that they can communicate with each other. I know that there is VPC and it is used when you want to use IP sec tunnels. I don't need tunnels. I just want that the hosts in different sites can communicate with each other. I want to send data with scp
or simply go the another host and launch a command (eg, ssh another_host "ls -la" ).
Should I use VPC? Is there any other inexpensive alternative?