apache 启动 systemctl start httpd 停止 systemctl stop httpd 重启 systemctl restart httpd
mysql 启动 systemctl start mysqld 停止 systemctl stop mysqld 重启 systemctl restart mysqld
php-fpm 启动 systemctl start php-fpm 停止 systemctl stop php-fpm 重启 systemctl restart php-fpm
nginx 启动 systemctl start nginx 停止 systemctl stop nginx 重启 systemctl restart nginx
