Http status code

Overview

원문은 이곳<ref>http://en.wikipedia.org/wiki/List_of_HTTP_status_codes</ref>에서 확인할 수 있다. HTTP status code

4XX Client error

• 400 Bad Request

The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).

• 401 Unauthorized(RFC 7235)

Similar to 403 Forbidden, but specifically for use when authentication is required and has failed or has not yet been provided. The response must include a WWW-Authenticate header filed containing a challenge applicable to the requested resource.

• 402 Payment Required

Reserved for future use. The original intention was the this code might be used as part of some form of digital cash or micropayment scheme, but that has not happened, and this code is not usually used. YouTube uses this status if a particular IP address has made excessive requests, and requires the person to enter a CAPCHA.

• 403 Forbidden

The request was a valid request, but the server is refusing to respond to it. Unlike a 401 Unauthorized response, authenticating will make no difference.

• 404 Not Found

The requested resource could not be found but may be available again in the future. Subsequent requests by the client are permissible.

References

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