I am unable to login as root through ssh, when logging in using ssh-key and when it prompts to enter the
user ,If I enter "root" it says -- Please login as the user "ubuntu" rather than "root". and the screen closes automatically.
I tried making an entry manually as the following line was not there, in /etc/ssh/ssh_config saying,
PermitRootLogin yes

But its still the same.,please help.,thanks in advance.,