1、Wordpress上传图片错误：
2、查看php-fpm，发现php-fpm: pool www的User为Apache
ps aux|grep php-fpm
ps aux|grep nginx
3、修改php-fpm www的user/group为：nginx
vim /etc/php-fpm.d/www.conf
systemctl restart php-fpm.service
ps aux|grep php-fpm
ps aux|grep php-fpm
ps aux|grep nginx
vim /etc/php-fpm.d/www.conf
systemctl restart php-fpm.service
ps aux|grep php-fpm