Your code and server security is very important to us. Last week we had many users who successfully deployed full Ruby on Rails stacks on many servers.
One thing we have been asked a lot about is how we connect to the servers. We understand the security concerns of our users when leaving port 22 open on their firewalls. That’s why we publish the list of our gateway IP addresses. These are the only IP addresses we try to make a SSH connection from on port 22.