CentOS7修改系统默认时区

centos 7启动方式


  centos6使用的是/etc/rc.d/init.d/functions启动centos7使用的是systemd启动
  systemd启动脚本方式
  systemctl enable httpd.service #自启动某服务
  systemctl disable httpd.service #禁用开机启动
  systemctl status httpd.service #查看服务状态
  systemctl list-units --type=service #查看所有服务
  
  systemctl start httpd.service
  systemctl stop httpd.service
  systemctl restart httpd.service
  
  systemctl is-enabled httpd #直看httpd服务是否开机启动
  
  也可以用于管理系统重启系统
  systemctl reboot关闭系统
  systemctl poweroffCPU停止工作systemctl halt暂停系统
  systemcti suspend休眠
  systemctl hibernate进入救援模式-单用模式systemctl rescue

Nginx on centos7

Centos7初始化