Django Settings:

The Settings file is a small but very important part of any Django project. If you do it wrong, you’ll have a lot of issues during all phases of development. But if you do it right, it will be a good basis for your project that will allow it to grow and scale in the future.

Using the environment variables approach, you can easily switch from a monolith to microservice architecture, wrap your project in Docker containers, and deploy it in any VPS or Cloud hosting platform such as: Amazon, Google Cloud, or your own Kubernetes cluster.

for more info: Django Settings

How Does SSH Work:

SSH, or Secure Shell, is a remote administration protocol that allows users to control and modify their remote servers over the Internet. The service was created as a secure replacement for the unencrypted Telnet and uses cryptographic techniques to ensure that all communication to and from the remote server happens in an encrypted manner. It provides a mechanism for authenticating a remote user, transferring inputs from the client to the host, and relaying the output back to the client.

to setup fellow this TUTORIAL TUTORIAL