I'm not an EC2 expert, but I seem to recall there are security groups that you can define etc. If you rely on a PaaS like Heroku or DotCloud, your consumers in

I'm not an EC2 expert, but I seem to recall there are security groups that you can define etc. If you rely on a PaaS like Heroku or DotCloud, your consumers instances could change anytime, so there is probably no easy/reliable way (apart if they support the notion of security group in some way) to restrict the connections on the EC2 running Redis. Just raw thoughts really - but I'd love to safely use Redis in the cloud, mixing Heroku/DotCloud or similar on one side, on RedIsGreen/RedisToGo on the other side! Keep us posted on your findings :-)