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目前除了我们常见的搜索引擎如百度、Google、Sogou、360等搜索引擎之外，还存在其他非常多的搜索引擎，通常这些搜索引擎不仅不会带来流量，因为大量的抓取请求，还会造成主机的CPU和带宽资源浪费，屏蔽方法也很简单，按照下面步骤操作即可，原理就是分析指定UA然后屏蔽。 + y' p/ W+ S, x
宝塔面板下使用方法如下：1、找到文件目录/www/server/nginx/conf文件夹下面，新建一个文件命名：agent_deny.conf 你也可以随意起名，创建完文件后，点击编辑这个文件，把下面的代码放进去保存。
6 ]% P: E8 O A# d （天辰重新收集整理，是为止目前也是最全的，最完善的代码）#禁止Scrapy等工具的抓取
( y! H$ `2 D, n$ I G: @ if ($http_user_agent ~* (Scrapy|Curl|HttpClient|crawl|curb|git|Wtrace)) {- {2 u0 Y6 E/ Q' S9 m1 ^, P' ?( a0 |
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return 403;# }0 J7 |# l7 q3 Q) |$ j
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#禁止指定UA及UA为空的访问; E9 `: Y+ f4 r% E: m& o
if ($http_user_agent ~* "CheckMarkNetwork|Synapse|Nimbostratus-Bot|Dark|scraper|LMAO|Hakai|Gemini|Wappalyzer|masscan|crawler4j|Mappy|Center|eright|aiohttp|MauiBot|Crawler|researchscan|Dispatch|AlphaBot|Census|ips-agent|NetcraftSurveyAgent|ToutiaoSpider|EasyHttp|Iframely|sysscan|fasthttp|muhstik|DeuSu|mstshash|HTTP_Request|ExtLinksBot|package|SafeDNSBot|CPython|SiteExplorer|SSH|MegaIndex|BUbiNG|CCBot|NetTrack|Digincore|aiHitBot|SurdotlyBot|null|SemrushBot|Test|Copied|ltx71|Nmap|DotBot|AdsBot|InetURL|Pcore-HTTP|PocketParser|Wotbox|newspaper|DnyzBot|redback|PiplBot|SMTBot|WinHTTP|Auto Spider 1.0|GrabNet|TurnitinBot|Go-Ahead-Got-It|Download Demon|Go!Zilla|GetWeb!|GetRight|libwww-perl|Cliqzbot|MailChimp|SMTBot|Dataprovider|XoviBot|linkdexbot|SeznamBot|Qwantify|spbot|evc-batch|zgrab|Go-http-client|FeedDemon|Jullo|Feedly|YandexBot|oBot|FlightDeckReports|Linguee Bot|JikeSpider|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|EasouSpider|LinkpadBot|Ezooms|^$" ) {) ?3 ` B; R. `# Z3 f
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return 403;4 M. R$ O4 @+ P# k% x7 l p
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}
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#禁止非GET|HEAD|POST方式的抓取
R3 k( t$ q3 `# _ if ($request_method !~ ^(GET|HEAD|POST)$) {8 w: K3 e- U+ Q$ \, ]/ Q
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return 403;
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1 V) d- g6 f+ q; ]5 P1 ^) T 2、找到【网站】-【设置】点击左侧 【配置文件】选项卡，在第7-8行左右 插入代码：  - `' A: _6 Q4 [0 S$ K H
include agent_deny.conf;2 P9 ~1 r9 N! u& I" K: {! U/ e
添加完毕后保存，重启nginx即可，这样这些蜘蛛或工具扫描网站的时候就会提示403禁止访问注意：如果你网站使用火车头采集发布，使用以上代码会返回403错误，发布不了的。 # b0 ?& x. T! c2 b; S" l9 ^/ K' ?
如果想使用火车头采集发布，请使用下面的代码：#禁止Scrapy等工具的抓取: d% I' Q% P3 l' d6 p
if ($http_user_agent ~* (Scrapy|Curl|HttpClient|crawl|curb|git|Wtrace)) {, G& E+ H7 H# x
1 d$ w7 o- F8 l; u, u& J9 p7 X" G8 y return 403;0 t6 g0 V2 v5 O: K+ g4 V# l
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if ($http_user_agent ~* "CheckMarkNetwork|Synapse|Nimbostratus-Bot|Dark|scraper|LMAO|Hakai|Gemini|Wappalyzer|masscan|crawler4j|Mappy|Center|eright|aiohttp|MauiBot|Crawler|researchscan|Dispatch|AlphaBot|Census|ips-agent|NetcraftSurveyAgent|ToutiaoSpider|EasyHttp|Iframely|sysscan|fasthttp|muhstik|DeuSu|mstshash|HTTP_Request|ExtLinksBot|package|SafeDNSBot|CPython|SiteExplorer|SSH|MegaIndex|BUbiNG|CCBot|NetTrack|Digincore|aiHitBot|SurdotlyBot|null|SemrushBot|Test|Copied|ltx71|Nmap|DotBot|AdsBot|InetURL|Pcore-HTTP|PocketParser|Wotbox|newspaper|DnyzBot|redback|PiplBot|SMTBot|WinHTTP|Auto Spider 1.0|GrabNet|TurnitinBot|Go-Ahead-Got-It|Download Demon|Go!Zilla|GetWeb!|GetRight|libwww-perl|Cliqzbot|MailChimp|SMTBot|Dataprovider|XoviBot|linkdexbot|SeznamBot|Qwantify|spbot|evc-batch|zgrab|Go-http-client|FeedDemon|Jullo|Feedly|YandexBot|oBot|FlightDeckReports|Linguee Bot|JikeSpider|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|EasouSpider|LinkpadBot|Ezooms ) { X+ J; i# n2 b- l" i( Y
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) O# c/ c* Z2 V. P+ v" _7 x #禁止非GET|HEAD|POST方式的抓取
2 p }6 s& I. I1 o/ N0 ^; x if ($request_method !~ ^(GET|HEAD|POST)$) {
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}
0 R- B1 f' T% C) y8 s( J 设置完了可以用模拟爬去来看看有没有误伤了好蜘蛛，说明：以上屏蔽的蜘蛛名不包括以下常见的6大蜘蛛名：百度蜘蛛：Baiduspider谷歌蜘蛛：Googlebot必应蜘蛛：bingbot搜狗蜘蛛：Sogou web spider 2 F* Y3 `6 K. M. f) I
360蜘蛛：360Spider神马蜘蛛：YisouSpider爬虫常见的User-Agent如下：FeedDemon 内容采集
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CrawlDaddy sql注入' b' M7 B2 b! _# A* m5 x
Java 内容采集! A8 J% ?: [7 b S% D) y; L
Jullo 内容采集$ C- V8 o$ \3 R( E
Feedly 内容采集
# M J; M+ r1 L# e6 e9 K5 B! Y9 Y UniversalFeedParser 内容采集3 J/ C5 x I8 x; U9 g1 ]: a( j; Z
ApacheBench cc攻击器
$ g& o! z% Z2 x- u8 z! `" y Swiftbot 无用爬虫' z5 ~1 g6 E0 u
YandexBot 无用爬虫
- F9 n3 E: ]! P1 P- P& J AhrefsBot 无用爬虫/ |- z% P5 F7 A
jikeSpider 无用爬虫1 v$ A, n, G+ F" T
MJ12bot 无用爬虫0 t6 X% S4 @2 |2 f. f# Z
ZmEu phpmyadmin 漏洞扫描
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EasouSpider 无用爬虫( X: Y# a* Q; W
HttpClient tcp攻击
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YYSpider 无用爬虫
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) }; ~$ H9 i6 w' n. c4 R9 q oBot 无用爬虫, i5 `# u" T0 D9 Y, G
Python-urllib 内容采集
: s& n" S2 K. j h, } Indy Library 扫描
4 G& S: S4 X* n FlightDeckReports Bot 无用爬虫( J0 d# i3 T0 A1 G
Linguee Bot 无用爬虫
8 _# ]; y+ k" l% v4 C 来源：BT宝塔屏蔽垃圾搜索引擎蜘蛛以及采集扫描工具教程
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