A good one to have in hand! ;)
Thanks a lot to: http://linoxide.com
More details on Systemd Commands: http://linoxide.com/linux-command/linux-systemd-commands/
OpenSSH server defaults to "PermitRootLogin without-password"
In an attempt to harden the default setup, the
openssh-serverconfiguration will now default to "PermitRootLogin without-password". If you rely on password authentication for the
rootuser, you may be affected by this change.
openssh-serverwill attempt to detect such cases and increase the priority of its debconf prompt.