linux systemctl

systemctl is-enabled *.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

注：*代表某个服务的名字，如http的服务名为httpd

docker centos7.x 运行systemctl命令异常

$ systemctl status firewalld.service

Failed to get D-Bus connection: Operation not permitted

解决办法：

docker run -itd --privileged --name docker-centos centos:latest /usr/sbin/init

$ systemctl start firewalld.service

Failed to start firewalld.service: Unit not found

解决办法：

$ yum install firewalld