sh
sudo apt update
sudo apt install openssh-server
sudo systemctl status ssh
sudo ufw allow ssh
sudo passwd root
vi /etc/ssh/sshd_config
 
#修改如下内容 设置PermitRootLogin  其他的配置默认是不开启root访问的
PermitRootLogin yes
sudo service sshd restart
# or
sudo systemctl restart sshd