nginx vhost for xl

server {
 #         error_log /var/log/nginx/vhost-error_log warn;
          listen 123.30.137.66:80;
          server_name xaluan.net mtvvui.com www.daiduong.com.au www.xaluan.net xaluan.com www.xaluan.com www.daiduongrestaurant.net veryzoo.com www.mtvvui.com www.xaluan.org www.veryzoo.com daiduongrestaurant.net xaluan.org daiduong.com.au;
#          access_log /usr/local/apache/domlogs/xaluan.net combined;
          root /home/xaluano/public_html;
          location / {
	  if ($http_cache_control ~ "max-age=0") {
                set $bypass 1;
          }

	  location
~.*\.(3gp|gif|jpg|jpeg|png|ico|wmv|avi|asf|asx|mpg|mpeg|mp4|pls|mp3|mid|wav|swf|flv|htm|txt|js|css|exe|zip|tar|rar|gz|tgz|bz2|uha|7z|doc|docx|xls|xlsx|pdf|iso)$
{
	  #root /home/xaluano/public_html;
	#proxy_cache wwwcache;
	  #proxy_cache_valid  200 15m;
	  #proxy_cache_bypass $bypass;
          expires 1d;
          #try_files $uri @backend;
	  proxy_pass http://123.30.137.66:8081;
          }
          error_page 405 = @backend;
          add_header X-Cache "HIT from Backend";
	  #proxy_set_header Server "Caching-Proxy";
          #add_header X-Cache-Vinahost "HIT from Backend";
	  proxy_pass http://123.30.137.66:8081;
          include proxy.inc;

          }


          location @backend {
          internal;
          proxy_pass http://123.30.137.66:8081;
          include proxy.inc;
          }
          location ~ .*\.(php|jsp|cgi|pl|py)?$ {
          #proxy_cache wwwcache;
	  #proxy_cache_valid  200 15m;

	  proxy_pass http://123.30.137.66:8081;
          include proxy.inc;
          }
          location ~ /\.ht {
          deny all;
          }

     }