Кэширование в nginx

[ower]

Здравствуйте.

Попробовал сделать вот такой конфиг для nginx на своем VPS, но при запуске на нем выскакивает ошибка 504 nginx. В логе nginx ошибки такого рода:

2010/05/18 09:41:12 [error] 15597#0: *39 could not find named location "@nocached", client: 94.246.127.88, server: example.com, request: "GET / HTTP/1.1", host: "example.com"
2010/05/18 09:41:22 [error] 15597#0: *49 could not find named location "@nocached", client: 195.93.155.18, server: example.com, request: "GET / HTTP/1.1", host: "example.com"

и так далее.... На все папки /var/cache/nginx/ и внутри нее права nginx выставлены - 700. Подскажите, что не так, не могу понять...

	http {

    proxy_cache_path /var/cache/nginx/cache levels=1:2 keys_zone=one:16m inactive=7d max_size=1024m;
    proxy_temp_path /var/cache/nginx/temp;

	server {
		set $cached 0;
		listen backend:80;
		server_name example.com www.example.com;
		rewrite ^(/manager/.*)$	https://$host$1	permanent;
		proxy_temp_path /var/cache/nginx/example.com;

		location ~* ^/(webstat/|awstats|webmail/|myadmin/|manimg/) {
			proxy_pass http://backend:8080;
			proxy_redirect off;
			proxy_set_header Host $host;
			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
			proxy_set_header X-Real-IP $remote_addr;
		}
		location / {
			proxy_pass http://backend:8080;
			proxy_redirect off;
			proxy_set_header Host $host;
			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
			proxy_set_header X-Real-IP $remote_addr;
            #здесь мы фильтруем наших залогиненых пользователей
            if ($cookie_dle_user_id) { return 412; }
            if ($cookie_dle_password) { return 412; }
            if ($request_method = POST ) {
            return 412;
        }
            error_page 412 = @nocached;
            proxy_cache one;
            proxy_cache_key "$request_method|$is_args|$host|$request_uri";
            proxy_hide_header "Set-Cookie";
            proxy_ignore_headers "Cache-Control" "Expires";
            proxy_cache_valid 200 302 304 5m;
            proxy_cache_valid 301 1h;
            proxy_cache_valid 503 4s;
            proxy_cache_valid any 1m;
            proxy_cache_use_stale http_502 http_503 http_504;
		}
        location ~ (sumiks.php|admin.php|index.php?action=logout) {
            proxy_pass http://backend:8080;
            proxy_redirect off;
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Real-IP $remote_addr;
        }
		location ~* ^.+\.(jpg|jpeg|gif|png|svg|js|css|mp3|ogg|mpe?g|avi|zip|gz|bz2?|rar)$ {
			root /var/www/example/data/www/example.com;
            expires 1y;
			access_log /var/www/httpd-logs/example.com.access.log;
			error_page 404 = @fallback;
            valid_referers   none  blocked  server_names 
            ~\.google\.
            ~\.yandex\.
            ~\.images.yandex\.
            ~\.yahoo\.
            ~\.marketgid\.
            ~\.msn\.
            ~\.altavista\.
            ~\.rambler\.
            ~\.mail\.
            ~\.gogo\.
            ~\.aport\.
            ~\.bing\.
            ~\.poisk\.
            ~\.conduit\.
            ~\.nigma\.
            ~\.icq\.
            ~\.qip\.
            ~\.liveinternet\.
            ~\.tut\.
            ~\.rss2email.ru\.
            ~\.rsslenta.ru\. ;
            if ($invalid_referer) {
            return   403;
		}
		}
		location @fallback {
			proxy_pass http://backend:8080;
			proxy_set_header Host $host;
			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
			proxy_set_header X-Real-IP $remote_addr;
		}
	}

Posted at Nginx Forum: http://forum.nginx.org/read.php?21,87654,87654#msg-87654