proxy_connect_timeout ;

  proxy_read_timeout ;

  proxy_send_timeout ;

  proxy_buffer_size 16k;

  proxy_buffers  64k;

  proxy_busy_buffers_size 128k;

  proxy_temp_file_write_size 128k;

  proxy_temp_path /home/temp_dir;

  proxy_cache_path /home/cache levels=: keys_zone=cache_one:200m inactive=1d max_size=10g;

location ~ .*\.(gif|jpg|png|htm|html|css|js|flv|ico|swf)(.*) {

      proxy_pass http://127.0.0.1:8000;//不缓存的直接访问后台服务器

      proxy_redirect off;

      proxy_set_header Host $host;

      proxy_cache cache_one;

      proxy_cache_valid   1h;

      proxy_cache_valid  1d;

      proxy_cache_valid any 1m;

      expires 30d;

}