2.4-nginx prohibit designation of User_agent

User_agent code used to identify the visitor's operating system (including version number) browser (including version number) and user preferences

For example , our server website, will be some search engine crawler program Access, which has a certain impact on the server pressure. We can prohibit it from visiting the website according to the user_agent mark of the crawler.

You can use the location statement or not. Insert the following code globally.

#全局配置黑名单, access to websites is forbidden

# Deny 127.0.0.1;

# Deny 192.168.1.0/24;

if ($http _user_agent ~* ' curl|baidu|111111 ') #~ match ~* to ignore case match

{

return 403;

}

Test:

curl-x192.169.11.101:80 Www.llzdwyp.com-I Display 403 Forbidden

Curl-a "LLZDWYP"-x192.168.11.101:80 Www.llzdwyp.com-I analog User_ageng for LLZDWYP, showing 301 normal

Open Web page with 360 browser, display normal. Because User-agent is Mozilla.

2.4-nginx prohibit designation of User_agent