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