Nginx 限制spider速度

#全局配置
limit_req_zone $anti_spider zone=anti_spider:10m rate=15r/m;
#某个server中
 limit_req zone=anti_spider burst=30 nodelay;
 if ($http_user_agent ~* "xxspider|xxbot") {
 set $anti_spider $http_user_agent;
}

超过设置的限定频率，就会给spider一个503。

上述配置详细解释请自行google下，具体的spider/bot名称请自定义。

附：nginx中禁止屏蔽网络爬虫

server {
        listen       80;
        server_name  www.xxx.com;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        #location / {
        #    root   html;
        #    index  index.html index.htm;
        #}
    if ($http_user_agent ~* "qihoobot|Baiduspider|Googlebot|Googlebot-Mobile|Googlebot-Image|Mediapartners-Google|Adsbot-Google|Feedfetcher-Google|Yahoo! Slurp|Yahoo! Slurp China|YoudaoBot|Sosospider|Sogou spider|Sogou web spider|MSNBot|ia_archiver|Tomato Bot") {
                return 403;
        }

    location ~ ^/(.*)$ {
                proxy_pass http://localhost:8080;
        proxy_redirect          off;
        proxy_set_header        Host $host;
        proxy_set_header        X-Real-IP $remote_addr;
        proxy_set_header       X-Forwarded-For   $proxy_add_x_forwarded_for;
        client_max_body_size    10m;
        client_body_buffer_size 128k;
        proxy_connect_timeout   90;
        proxy_send_timeout      90;
        proxy_read_timeout      90;
        proxy_buffer_size       4k;
        proxy_buffers           4 32k;
        proxy_busy_buffers_size 64k;
        proxy_temp_file_write_size 64k;
    }
}