yum install -y dnf-utils zip unzip

 yum config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo

 yum install -y docker-ce

systemctl start docker && systemctl enable docker

安装docker-compose

yum install docker-compose-plugin

停止并禁用开机启动

systemctl stop firewalld
systemctl disable firewalld

systemctl status firewalld 或者 firewall-cmd --state

开启root登录

vim /etc/ssh/sshd_config

找到passwordAuthentication项，修改成yes

重启ssh

service sshd restart

密码设置：sudo passwd user-name