Sure, sorry I didn't elaborate my previous comment, it was late here and after re-reading, it feels like a rant. What I meant was that I've tried following Katacoda's kubeadm tutorial (https://www.katacoda.com/courses/kubernetes/getting-started-...) but for some reason it seems not to be working for me. Both cluster nodes never get `ready` after finishing the tutorial, only the master one.