Any instance or resource living in a private subnet in your VPC will be inaccessible from the Internet. This makes good sense from a security perspective because it gives your instances a higher level of protection.
Of course, if they can't be accessed from the Internet, then they're not going to be easy to administer.
One common pattern is to use a VPN server as a single, highly controlled, entry point to your private network. This is what we're going to show you in this recipe, as pictured in the following diagram:
Accessing private instances securely
