Linux下 规则文件.htaccess(手工创建.htaccess文件到站点根目录)
<IfModule mod_rewrite.c>
RewriteEngine On
#Block spider
RewriteCond %{HTTP_USER_AGENT} "Webdup|AcoonBot|AhrefsBot|Ezooms|EdisterBot|EC2LinkFinder|jikespider|Purebot|MJ12bot|WangIDSpider|WBSearchBot|Wotbox|xbfMozilla|Yottaa|YandexBot|Jorgee|SWEBot|spbot|TurnitinBot-Agent|mail.RU|curl|perl|Python|Wget|Xenu|ZmEu" [NC]
RewriteRule !(^robots\.txt$) - [F]
</IfModule>
windows2003下 规则文件httpd.conf （在虚拟主机控制面板中用 “ISAPI筛选器自定义设置 " 开启自定义伪静态 Isapi_Rewite3.1 ）
#Block spider
RewriteCond %{HTTP_USER_AGENT} (Webdup|AcoonBot|AhrefsBot|Ezooms|EdisterBot|EC2LinkFinder|jikespider|Purebot|MJ12bot
|WangIDSpider|WBSearchBot|Wotbox|xbfMozilla|Yottaa|YandexBot|Jorgee|SWEBot|spbot|TurnitinBot-Agent|mail.RU|curl|perl
|Python|Wget|Xenu|ZmEu) [NC]
RewriteRule !(^/robots.txt$) - [F]
windows2008下 web.config
<rule name="Block spider">
<match url="(^robots.txt$)" ignoreCase="false" negate="true" />
<conditions>
<add input="{HTTP_USER_AGENT}" pattern="Webdup|AcoonBot|AhrefsBot|Ezooms|EdisterBot|EC2LinkFinder|jikespider|Purebot|MJ12bot" ignoreCase="false" />
</conditions>
<action type="CustomResponse" statusCode="403" statusReason="Forbidden" statusDescription="Forbidden" />
</rule>
注：规则中默认屏蔽部分不明蜘蛛，要屏蔽其他蜘蛛按规则添加即可
附各大蜘蛛名字：
google蜘蛛：googlebot
百度蜘蛛：baiduspider
yahoo蜘蛛：slurp
alexa蜘蛛：ia_archiver
msn蜘蛛：msnbot
bing蜘蛛：bingbot
altavista蜘蛛：scooter
lycos蜘蛛：lycos_spider_(t-rex)
alltheweb蜘蛛：fast-webcrawler
inktomi蜘蛛：slurp
有道蜘蛛：YodaoBot和OutfoxBot
热土蜘蛛：Adminrtspider
搜狗蜘蛛：sogou spider
SOSO蜘蛛：sosospider
360搜蜘蛛：360spider
