Harden a Server by Restricting Access per Protocol

In this challenge by Learn On Demand Systems, you will add blacklisted IP addresses to your web server, and you need to allow access to the server from a specific network only. First, you will allow access to a web server for everyone. Next, you will add blacklisted IP addresses to the web server, and then you will test access to the web server from a blacklisted IP address. Finally, you will allow access to a server from a specified network.