Is it possible to make SSH without logging in at all? Without your password and key?

Hello! The question arose - is it possible to remove port 22 (OpenSSH) any authorization at all? What would this command immediately established a connection
ssh user@

I understand that it's not safe, but then safety is not required. And there is no way to enter a password or to download the authorization keys to the customer.
It is possible to realize this?
June 5th 19 at 21:39
2 answers
June 5th 19 at 21:41
sshpass -p password ssh -o StrictHostKeyChecking=no user@
June 5th 19 at 21:43
In /etc/ssh/sshd_config to put PermitEmptyPasswords Yes and restart the ssh daemon?
Indeed, so it should work. But why is not working. Trying to login under root and as a normal user, still asks for a password((( there is still some necessary settings? - florine.Lesch commented on June 5th 19 at 21:46

Find more questions by tags DebianOpenSSHSSH