, you will need to install and configure iptables (the native firewall) to allow web traffic destined to port 80 and port 443 to enter into your system. Confirm that at least port 80 is open using a scanning tool such as nmap, then test your website. Be sure to set iptables to start at boot and allow port 80/443 traffic. Document the steps you took to perform these tasks and submit them. Note: details on how to start, stop, and configure iptables can be found here: https://www.cyberciti.biz/faq/ubuntu-start-stop-iptables-service/. This specifically references Ubuntu, but is easily adapted to other major distributions, such as Red Hat