Amazon EC2 | Creating a Connection to an Amazon RDS Instance

In a previous article, we showed how to expose an Amazon RDS instance to the public internet securely for direct access to the database. In this article we shall configure an Amazon EC2 instance for network access to an existing Amazon RDS instance. The purpose of this would be to make sure that if we deploy an application to this EC2 instance, communication from the client to the RDS instance would be smooth.