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HTTP Error Codes And Responses.

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HTTP Error Codes & Responses.

[Explainning http error codes & responses.]

3xx Client Error Description
300 Multiple Choices- This indicates multiple options for the resource that the client may follow. For instance, it could be used to present different format options for video, list files with different extensions, or word sense corroboration
301 Redirection- This is used to redirect files from link A to link B or from Domain A to Domain B, it's used to even redirect a whole Domain from one Server to another.
4xx Client Error Description
400 Bad Request- This means the server couldn't understood the request due to syntax incorectness.
401 Unauthorized User- Authentication is required to access location.
403 Forbidden- The server understood the request. However it's refusing to fulfill it, possibly intentionally blocked from users.
404 Page Not Found- The server has not found anything matching the Request - URI.
405 Method Not Allowed- The method specified in the Request-Line is not allowed for the resource identified by the Request - URI.
406 Not Acceptable- The server cannot generate a response that the requestor is willing to accept.
407 Proxy Authentication Required- This code is similar to 401 (Unauthorized), but indicates that the client must first authenticate itself with the proxy.
408 Request Timed Out- The server stopped waiting for a client request.
409 Conflict- The request could not be completed due to a conflict with the current state of the resource.
410 Gone- The requested resource is no longer available at the server and no forwarding address is known. This condition is similar to 404, except that the 410 error condition is expected to be permanent.
411 Length Required- The server requires a content-length in the request.
412 Precondition Failed- The precondition given in one or more of the request-header fields evaluated to false when it was tested on the server.
413 Request Entity Too Large- The server is refusing to process a request because the request entity is larger than the server is willing or able to process.
414 Request URL Too Long- The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret.
415 Unsupported Media Type- The server is refusing to service the request because the entity of the request is in a format not supported by the requested resource for the requested method.
416 Requested Range Not Satisfiable- This status code SHOULD be returned by a Server in response, if a range request-header failed is included in a request, and none of the range-specifier values in this field overlap the current extent of the selected resource, and also the request did not include an If-Range request-header field.
417 Expectation Failed- This response is received when the expectation given in an Expect request-header field could not be met by this server, if the server is a proxy, or the server has explicit evidence that the request could not be met by the next-hop server.
5xx Client Error Description
500 Server Error- Internal Web Server Error
501 No Server-Function not implemented in Web server software.
502 Server Overload- Bad Gateway; a server being used by this Web server has sent an invalid response.
503 Service Unavailable- Service unavailable because of temporary overload or Server under maintenance.
504 Gateway Timeout- A server being used by this server has not responded in time.
505 HTTP Version Not Supported- The server does not support the HTTP protocol version that was used in the request message.

For detailed infomation on http error codes and responses, refer to the W3C web page.


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