proxy_redirect            off;
proxy_set_header          Host            $host;
proxy_set_header          X-Real-IP       $remote_addr;
proxy_set_header          X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size      16384m;
client_body_timeout       600s;
client_body_buffer_size   128k;
client_header_buffer_size 64k;
proxy_connect_timeout     90;
proxy_send_timeout        90;
proxy_read_timeout        90;
proxy_buffer_size         16k;
proxy_buffers             32   16k;
proxy_busy_buffers_size   64k;
proxy_max_temp_file_size  16384m;
