It is impossible to distinguish these cases in general, so the difference is only informational. Note that the 511 response SHOULD NOT contain a challenge or the login interface itself, because browsers would show the login interface as being associated with the originally requested URL, which may cause confusion. nginx 1.9.5 source code. Retrieved 2016-01-09. ^ "ngx_http_special_response.c". http://orgias.org/http-status/http-600-error-code.html
Microsoft. When received in response to a POST (or PUT/DELETE), it should be assumed that the server has received the data and the redirect should be issued with a separate GET message. Please try again.
Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. Retrieved 2015-04-06. ^ "E Explanation of Failure Codes". This is typically the response sent after a PUT request. 202 Accepted The request has been received but not yet acted upon. Http Code 403 Retrieved 16 October 2015. ^ Berners-Lee, Tim; Fielding, Roy T.; Nielsen, Henrik Frystyk (May 1996).
https://tools.ietf.org/html/rfc2518. Http Status Code 400 The response format is the same as for Moved . The 204 response MUST NOT include a message-body, and thus is always terminated by the first empty line after the header fields. https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html This responses should be used for temporary conditions and the Retry-After: HTTP header should, if possible, contain the estimated time before the recovery of the service.
Wikipedia The client needs to authenticate to gain network access. Http 422 Wikipedia A generic error message, given when no more specific message is suitable. Microsoft. 2010. Such an event is common for limited-time, promotional services and for resources belonging to individuals no longer working at the server's site.
This code indicates that the server has received and is processing the request, but no response is available yet. This prevents the client from timing out and assuming the request was lost. 2xx Success This class of status codes indicates the action requested by the client was received, understood, accepted, and processed successfully. 200 OK Standard response for successful HTTP requests. If the response is the result of an If-Range request that used a weak validator, the response MUST NOT include other entity-headers; this prevents inconsistencies between cached entity-bodies and updated headers. Http Status Codes Cheat Sheet The client MAY repeat the request with a suitable Proxy-Authorization header field (section 14.34). Http Response Example Hypertext Transfer Protocol -- HTTP/1.1.
Wikipedia The requested resource is only capable of generating content not acceptable according to the Accept headers sent in the request. 407 Proxy Authentication Required This code is similar to 401 (Unauthorized), but indicates that the client must first authenticate itself with the proxy. this content IETF. 2014. Many of these status codes are used in URL redirection. A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition. Http Code 302
The 202 response is intentionally non-committal. Wikipedia The server failed to fulfill an apparently valid request. Wikipedia The client must first authenticate itself with the proxy. 408 Request Timeout The client did not produce a request within the time that the server was prepared to wait. weblink Thank you,,for signing up!
RFC 1945. Http 404 If the user is unexpectedly receiving a 404 Not Found error, here are some questions to ask while troubleshooting: Does the link that directed the user to your server resource have a typographical error in it? Successful creation occurred (via either POST or PUT).
This message means the server answered the request. HTTP Status Codes 300-307 - Redirection Status Codes: As the name suggests, status messages in this series signals that the requested resource has changed locations. HTTP Status Codes 400-416 - Client Error Status Codes: These messages mean that an error has occurred on the client or user agent's end.HTTP Status Codes 500-505 - Server Error Status Codes: In contrast to the messages above, status messages in this series signal a problem has occurred on the server's end. nginx 1.9.5 source code. Clients such as search engines should remove the resource from their indices. Most use cases do not require clients and search engines to purge the resource, and a "404 Not Found" may be used instead. 411 Length Required The request did not specify the length of its content, which is required by the requested resource. 412 Precondition Failed (RFC 7232) The server does not meet one of the preconditions that the requester put on the request. 413 Payload Too Large (RFC 7231) The request is larger than the server is willing or able to process. Http 502 New changes in the URI might be made in the future.
using curl incorrectly) 401 Unauthorized The 401 status code, or an Unauthorized error, means that the user trying to access the resource has not been authenticated or has not been authenticated correctly. Retrieved 16 October 2015. ^ Berners-Lee, Tim; Fielding, Roy T.; Nielsen, Henrik Frystyk (May 1996). A user agent should detect and intervene to prevent cyclical redirects. 300 Multiple Choices Indicates multiple options for the resource from which the client may choose (via agent-driven content negotiation). check over here This is the appropriate response when the server does not recognize the request method and is not capable of supporting it for any resource.
Used in API v1.192SSL is requiredOnly SSL connections are allowed in the API, you should update your request to a secure connection. Note: HTTP/1.1 servers are allowed to return responses which are not acceptable according to the accept headers sent in the request. A cache that does not support the Range and Content-Range headers MUST NOT cache 206 (Partial) responses. Upon receiving a 410 status code, the client should not request the resource in the future.
Retrieved 16 October 2015. ^ "RFC7235 on code 401". This response code allows the client to place preconditions on the current resource metainformation (header field data) and thus prevent the requested method from being applied to a resource other than the one intended. 10.4.14 413 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. So, for example, submitting a form to a permanently redirected resource may continue smoothly. 4xx Client Error 404 error on German Wikipedia The 4xx class of status code is intended for situations in which the client seems to have erred. The original intention was that 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.
As an example of its use, however, Apple's MobileMe service generates a 402 error ("httpStatusCode:402" in the Mac OS X Console log) if the MobileMe account is delinquent. 403 Forbidden The server understood the request, but is refusing to fulfill it. The server MUST send a final response after the request has been completed. Therefore, HTTP/1.1 added status codes 303 and 307 to distinguish between the two behaviours. However, some Web applications and frameworks use the 302 status code as if it were the 303. 303 See Other (since HTTP/1.1) The response to the request can be found under another URI using a GET method. It is intended for cases where another process or server handles the request, or for batch processing. 203 Non-Authoritative Information This response code means returned meta-information set is not exact set as available from the origin server, but collected from a local or a third party copy.
httpstatus. If you've ever received an error message, you're likely interested in deciphering what HTTP status codes mean.