Managing (or Screwing Up) Multiple Servers at Once using ClusterSSH

https://youtu.be/3XYo8ARQn_s

Installing MacPorts: https://youtu.be/fJveW3f5p0c

Installing XQuartz: https://youtu.be/s6e3cqCISaE

Installing on Mac using Macports

sudo port install clusterssh

Installing on Ubuntu using Apt

sudo apt install clusterssh