#proxy_cache_path  /var/cache/nginx/proxy_temp/  levels=1:2    keys_zone=PROXY:10m inactive=1h  max_size=1g;
    #proxy_connect_timeout   90;
    #proxy_cache             PROXY;
    #proxy_cache_valid       200 302 5m;
    #proxy_cache_valid       404    30m;
    #proxy_cache_valid       any     1m;
    #proxy_cache_use_stale   error timeout invalid_header updating http_500 http_502 http_503 http_504;