CentOS7系统基础操作命令

启动、关闭服务

启动一个服务：systemctl start firewalld.service
关闭一个服务：systemctl stop firewalld.service
重启一个服务：systemctl restart firewalld.service
显示一个服务的状态：systemctl status firewalld.service
在开机时启用一个服务：systemctl enable firewalld.service
在开机时禁用一个服务：systemctl disable firewalld.service

查看服务是否开机启动：systemctl is-enabled firewalld.service;
查看已启动的服务列表：systemctl list-unit-files|grep enabled

1、开、关防火墙，及查看当前状态
systemctl status firewalld.service
systemctl stop firewalld.service
systemctl disable firewalld.service
systemctl status firewalld.service