Unable to log in via ssh after Rocky Linux 9 is installed

Rocky Linux is a version released by the original founder of CentOS to solve the problem of CentOS outage. This version is based on the downstream release of Red Hat Enterprise Linux 9.     In Rocky Linux 9 version, for added security, SSH root password login is disabled by default. This is the default rule set by the system, and we can also change it.     Allow Rocky Linux 9 root user to log in through ssh: Edit the SSH configuration file vi /etc/ssh/sshd_config and find the following content #PermitRootLogin prohibit-password  Modify it to PermitRootLogin yes Save and exit Restart the SSH service systemctl restart sshd At this time, the root user can pass ssh remote login.