#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 $proxy_add_x_forwarded_for; client_max_body_size 10m; client_body_buffer_size 128k; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} }
可以用 curl 测试一下
curl -I -A "qihoobot" www.xxx.com