HTTP Status Code 444 Connection Closed Without Response

What is HTTP Status Code 444 Connection Closed Without Response?

HTTP Status Code 444 is a non-standard status code that tells Nginx to disconnect the connection without giving a response to the client, usually to refuse malicious or faulty requests.

Connection Closed Without Response status code is only shown in Nginx log files and is not visible to the client.

A programmer generally wants their program to run smoothly and without any hassle. So even if the program returns some response code not necessary to the client, in that case, a status code 444 is used in such case. The Client-side is not aware of what error has occurred but the Nginx server will save the details in its log file for the programmer to later sort it out.

Example

server {
error_page 500 502 503 504 =444 @blackhole;

  location @blackhole {
    return 444;
  }
}
//credit stackoverflow

Conclusion

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