How to Enable SSH root login on Ubuntu Server

• Change your root user password :-

        ==> sudo passwd root

• Open the sshd_config file :-

        ==> sudo nano /etc/ssh/sshd_config

• Find the following line in sshd_config :-

        ==> PermitRootLogin prohibit-password

• Change the following line :-

        ==> PermitRootLogin yes

• Then restart the ssh service :-

        ==> sudo /etc/init.d/ssh restart