The DNS server we will create is to block advertisements, trackers, and telemetry for privacy reasons. Telemetry is the meta data of what you do online. Like diagnostic data sent to vendors. For our personal data center, we will be running the Pi-Hole. It's supposed to be a

Publishing your public SSH key to GitHub can be used when you're installing a new Ubuntu Server

Your IP Address is your number on the Internet. It's similar to your home address or personal cell phone number. IPv4 is the bulk of the internet. It is comprised of four sets of numbers that range from 0 - 255. Example 1.1.1.1. IPv6 is