How realistic is it to fix PermitRootLogin without-password if there is no ssh?

Question

ubuntu

Hello guys,
I messed up with the server settings, twisted the ssh root access setting and disabled the password connection in sudo nano /etc/ssh/sshd_config
(PermitRootLogin without-password)
now naturally writes - Permission denied (publickey,password).
How can a thread fix this?

Answer 1

via ssh with another account,
then su and the password from the root

Answer 2

Yes you can of course.
1. Connect under another account that has sudo.
2. Connect to the kvm server or, if available, log in via ipmi. It will no longer be ssh, so the password will work.