/etc/nginx/nginx.conf
#include /etc/nginx/naxsi_core.rules;
...
##
# Proxy Buffer
##
proxy_buffer_size 128k;
proxy_buffers 4 256k;
proxy_busy_buffers_size 256k;
...
##
# Virtual Host Configs
##
/etc/nginx/fastcgi_params
...
fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 256k;