def sudo_command(self, command, bufsize=-1):
        """Sudo a command on the SSH server.
        Delegates to :func`~ssh.Connection.exec_command`

        :param command: the command to execute
        :type command: str
        :param bufsize: interpreted the same way as by the built-in C{file()} function in python
        :type bufsize: int
        :returns the stdin, stdout, and stderr of the executing command
        :rtype: tuple(L{ChannelFile}, L{ChannelFile}, L{ChannelFile})

        :raises SSHException: if the server fails to execute the command
        """
        new_command = "sudo {0}".format(command)
        return self.exec_command(new_command, bufsize)