nginx + php-fpm: permission denid

[ManuelRighi]

Hello,
I try to set permission to php5-fpm.sock file to 666 (srw-rw-rw-  1 www-data
www-data) but problem persist.
On www.conf I have listen.mode = 0660

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,255096,255103#msg-255103