Enable SSH root login

To be able to login as root via SSH, we need to change one line in this config file:

/etc/ssh/sshd_config

In the file, you will find following line:

#PermitRootLogin prohibit-password

To allow logging in as root, we will uncomment the line and change "prohibit-password" to "yes". Like this:

PermitRootLogin yes

Save the file and exit your editor. The last thing left to do: Restarting the SSH system service.

# systemctl restart ssh