甲骨文开启root密码登陆的方法

sudo -i
echo root:你的新密码 |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 service sshd restart