进入服务器shell,执行如下命令
注意修改如下命令当中密码(password),为root密码
echo root:(password) |sudo chpasswd root
sudo sed -i 's/^.*PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config;
sudo sed -i 's/^.*PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config;
sudo reboot