upstream sent too big header – nginx error

|| if you get nginx error like:

upstream sent too big header while reading response header from upstream

|| how to fix nginx error upstream sent too big header
| try to increment to buffer size in nginx

# vi /etc/nginx/nginx.conf
## add this line on http { } section
fastcgi_buffers 8 16k;
fastcgi_buffer_size 32k;

| restarting nginx

# /etc/init.d/nginx restart