permission denied: in nginx

[pavan.anjaneyulu@gmail.com]

HI
I am working on nginx, i am developed an small module to read data from
an external device. when i call module from the browser i am getting an
error  "Error connecting XXXXX : permission denied"

i tried to change the permission and owner of the file (chown and
chmod)but still i got same error. can anyone plz help how to move on
further


Regards 
pavan

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,210423,210423#msg-210423