define('FS_METHOD','direct');

Change owner

chown -Rv apache:apache /var/www/wordpress/

find /var/www/wordpress/ -type f -exec chmod 644 {} \;

find /var/www/wordpress/ -type d -exec chmod 755 {} \;

Selinux

chcon -t httpd_sys_rw_content_t /var/www/wordpress/ -R

setbool -P httpd_can_sendmail=1