Public bug reported:
I upgraded libnetplan0 on our AWS EC2 from 0.99-0ubuntu3~20.04.2 to
0.101-0ubuntu3~20.04.2, but did not upgrade netplan.io, which remained
at version 0.99-0ubuntu1. On system reboot, our networking was not
configured properly and our AWS EC2 instance was unreachable via SSH.
I posted a solution that worked for me using iTerm2 on OS X to
StackOverflow:
http://stackoverflow.com/questions/26180096/os-x-byobu-vertical-
split/26470118#26470118
It involved removing OS X keyboard shortcuts that could interfere,
updating the iTerm2 profile key map to send the correct escape
