Apparently, an update to VirtualBox after version 6.1.26 limited the IP’s usable for network adapters on Mac / Linux hosts. They must now be in the 192.68.56.0/21 range, which is pretty limited and much less easy to remember or type than the 10.*.*.* that I had been using. I had to change my projects to all be in this range and spread out the IPs to avoid collisions between the various projects when I updated VirtualBox a while back.
vm posts
Recreating missing ‘vagrant’ user
Recently, the ‘vagrant’ user somehow disappeared on a vagrant VM of mine. It may have happened during a do-dist-upgrade. It took me a while to figure out why vagrant provision and vagrant ssh were failing.