ssh to root

Hi,
root login is disabled on my server,
how can i login with ssahdmin the su root?

Regards,

Please read FAQ. If that does not help, come back.

Hi
i tried sudo /bin/sftp-server & sudo -s

but it says: you must have a tty

what is tty?

Regards,

See the very last paragraph of the FAQ and also article on remote commands.