1.进入配置nginx路径
/usr/local/sbin/nginx -t -c /usr/local/nginx/conf/
2.返回这个就是正确
nginx: the configuration file /usr/local/nginx/conf/ syntax is ok
nginx: configuration file /usr/local/nginx/conf/ test is successful
3.可以重启
systemctl restart nginx
其他两种启动方式：
service nginx restart
/usr/sbin/nginx -s reload