#params for nginx proxy backends
        large_client_header_buffers 4 64k;
        proxy_connect_timeout 300;
        proxy_send_timeout 300;
        proxy_read_timeout 300;
        client_max_body_size 256m;
        client_body_buffer_size 128k;
        proxy_buffer_size          128k;
        proxy_buffers              4 256k;
        proxy_busy_buffers_size    256k;
        proxy_temp_file_write_size 256k;
        proxy_redirect off;
        proxy_buffering off;