为AWS的Lightsail/EC2开启root密码登录最简单的方法

1
echo root:mima sudo chpasswd root
2
sudo sed -i 's/^#\?PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config;
3
sudo sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config;
4
sudo reboot