By default the SSH access to root account is disabled for security reasons. However if you would like to turn it on you can follow the guide
- Login to your control panel and open vnc
- As root, edit the sshd_config file in
/etc/ssh/sshd_config
- Use the command
nano /etc/ssh/sshd_config for editing
- Find the line
PermitRootLogin without-password
- Change it to
PermitRootLogin yes
- Then restart the ssh with command
service ssh restart