systemctl命令
systemctl is-enabled iptables.service
systemctl is-enabled servicename.service #查询服务是否开机启动
systemctl enable *.service #开机运行服务
systemctl disable *.service #取消开机运行
systemctl start *.service #启动服务
systemctl stop *.service #停止服务
systemctl restart *.service #重启服务
systemctl reload *.service #重新加载服务配置文件
systemctl status *.service #查询服务运行状态
systemctl --failed #显示启动失败的服务
删除镜像 docker rmi 镜像id或者镜像名字
Docker环境安装
- 安装yum-utils:
yum install -y yum-utils device-mapper-persistent-data lvm2
- 为yum源添加docker仓库位置:
yum