I have what seems to be a growing count of EC2 instances and all is running fine and dandy. The one problem I'm facing, however, is figuring out a strategy for SSHing between the machines. Copying over my private key to each instance is counter productive, and it works fine when I need to SSH in from my personal machine, but not when I need to SSH from machine to machine.
What are some decent strategies to tackle this problem? How are you SSHing in between your cluster of EC2 instances?