On Sun, 16 Jul 2023, Intense Red wrote:
Are you trying to ssh into the box as the root user?
I do not ssh into remote boxes as root; I use ssh to root only within the box.
If so, remember Debian's ssh configuration stops root from logging in.
In my Debian 9 and 11 boxes I see in /etc/ssh/sshd_config "PermitRootLogin yes" by default, and by default local and remote root login is possible.
Roger