The other lesson I'd add is that if an instance dies and can't be rebooted, you'll need to stop/start it, which will result in an IP address change. Best to ha

The other lesson I'd add is that if an instance dies and can't be rebooted, you'll need to stop/start it, which will result in an IP address change. Best to have elastic IPs at the ready for that instance, or be prepared to deal with the IP changes.