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Most people do not understand the knowledge points of this article "nginx modify configuration limits the frequency of malicious crawlers", so the editor summarizes the following contents, detailed contents, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "nginx modify configuration to limit the frequency of malicious crawlers" article.

The code is as follows:

# Global configuration of limit_req zone=anti_spider burst=30 nodelay;if ($http_user_agent ~ * "xxspider | xxbot") in a server of limit_req_zone $anti_spider zone=anti_spider:10m rate=15r/m;# {set $anti_spider $http_user_agent;}

If you exceed the limited frequency set, spider will be given a 503.

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