proxy_cache.conf

upstream  p2p  {
        server   127.0.0.1:8086;
        }

server
        {
        listen       80;
        server_name  _;

        location / {
                proxy_pass		http://p2p;
                proxy_set_header	Host		$host;
                proxy_set_header	X-Real-IP	$remote_addr;
                proxy_set_header	X-Forwarded-For	$proxy_add_x_forwarded_for;
        }

	location ~ /purge(/.*) { 
		#allow			127.0.0.1; 
		#allow			192.168.0.0/16; 
		#deny			all; 
		proxy_cache_purge	NCache $host$1$is_args$args; 
	}

	#ctrl+f5
	#curl -H "Cache-Control: no-cache" http://127.0.0.1/
	if ($http_Cache_Control = "no-cache") {
		rewrite ^(.*)$ /purge$1 last;
	}


	location ~.*\.(gif|jpg|jpeg|png)$ {
		proxy_next_upstream	http_502 http_504 error timeout invalid_header;
		proxy_cache		NCache;
		proxy_cache_valid	200 304 1d;
		proxy_cache_key		$host$uri$is_args$args;
		proxy_set_header	Host $host;
		proxy_set_header	X-Forwarded-For $remote_addr;
		proxy_pass		http://p2p;
		expires			1d;	
		add_header		X-Cache	NCache;
	}

       access_log  off;
  }