The video demonstrates how to set up PostgreSQL database and pgadmin4 web interface using a secure shell to an Azure Linux VM. The PostgreSQL version 13 is being set up in the video with pgadmin version 4.

The video demonstrates the procedure to set up the Nginx web server on Ubuntu Linux VM side by side with Apache2 web server.

The video demonstrates how to create a free digital certificate validated by a valid authority Letsencrypt.