Headless Hashcat Server

While cracking passwords as a hobby for over a decade I've been continually upgrading a rig dedicated to the task. In its current configuration Cpt-Crunch (no affiliation to the cereal) is a 4-GPU "headless" server which I access via SSH to run various cracking activities. This is my step-by-step guide for installing the OS, configuring the GPU's, installing and testing Hashcat and John the Ripper.