The tutorial outlines a method for providing controlled internet access to authenticated users in environments such as campsites, hotels, or companies, using a proof-of-concept solution that combines Linux, FusionAuth, Python scripting, and network management via iptables. The process involves setting up a CentOS-based network gateway, configuring FusionAuth for user authentication, and utilizing Python scripts to manage network access based on authentication status. The guide includes detailed steps for configuring the necessary software components, setting network parameters, and testing the setup to ensure that only authenticated users can access the internet. Additionally, it covers the creation of bulk guest users and suggests methods for regular resetting of access rules to maintain security. The tutorial emphasizes the flexibility and customizability of the solution, allowing for various extensions such as time-based access control and provides all scripts in a GitHub repository for further exploration and adaptation.