500 Internal Server Error - 500 Internal Server Error Message ...

500 Internal Server Error - 500 Internal Server Error Message ...

500 Internal Server Error. The server encountered an unexpected condition which prevented it from fulfilling the request.


Custom error 500 internal server error
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The Apache Web server allows site managers to customise error pages for HTTP errors by number. This error 500 internal server error, means that a request for a URL has triggered a fault with the Web server. It is likely that a server configuration change, CGI script, Java servlet, or other server side application has caused a fault.


1xx InformationalRequest received, continuing process.
This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line. Since HTTP/1.0 did not define any 1xx status codes, servers must not send a 1xx response to an HTTP/1.0 client except under experimental conditions.
100 Continue This means that the server has received the request headers, and that the client should proceed to send the request body (in the case of a request for which a body needs to be sent; for example, a POST request). If the request body is large, sending it to a server when a request has already been rejected based upon inappropriate headers is inefficient. To have a server check if the request could be accepted based on the request's headers alone, a client must send Expect: 100-continue as a header in its initial request (see RFC 2616 §14.20: Expect header) and check if a 100 Continue status code is received in response before continuing (or receive 417 Expectation Failed and not continue).[1] 101 Switching Protocols
[edit] 2xx SuccessThe action was successfully received, understood, and accepted.
This class of status code indicates that the client's request was successfully received, understood, and accepted.
200 OK Standard response for successful HTTP requests. 201 Created The request has been fulfilled and resulted in a new resource being created. 202 Accepted The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place. 203 Non-Authoritative Information (since HTTP/1.1) 204 No Content 205 Reset Content 206 Partial Content Notice that a file has been partially downloaded. This is used by tools like wget to enable resuming of interrupted downloads, or split a download into multiple simultaneous streams.
[edit] 3xx RedirectionThe client must take additional action to complete the request.
This class of status code indicates that further action needs to be taken by the user agent in order to fulfill the request. The action required may be carried out by the user agent without interaction with the user if and only if the method used in the second request is GET or HEAD. A user agent should not automatically redirect a request more than 5 times, since such redirections usually indicate an infinite loop.
300 Multiple Choices Indicates multiple options for the resource that the client may follow. It, for instance, could be used to present different format options for video, list files with different extensions, or word sense disambiguation. 301 Moved Permanently This and all future requests should be directed to the given URI. 302 Found This is the most popular redirect code, but also an example of industrial practice contradicting the standard. HTTP/1.0 specification (RFC 1945) required the client to perform a temporary redirect (the original describing phrase was "Moved Temporarily"), but popular browsers implemented it as a 303 See Other. Therefore, HTTP/1.1 added status codes 303 and 307 to disambiguate between the two behaviours. However, the majority of Web applications and frameworks still 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. 304 Not Modified Indicates the resource has not been modified since last requested. Typically, the HTTP client provides a header like the If-Modified-Since header to provide a time against which to compare. Utilizing this saves bandwidth and reprocessing on both the server and client. 305 Use Proxy (since HTTP/1.1) Many HTTP clients (such as Mozilla [2] and Internet Explorer) don't correctly handle responses with this status code, primarily for security reasons. 306 Switch Proxy No longer used. 307 Temporary Redirect (since HTTP/1.1) In this occasion, the request should be repeated with another URI, but future requests can still use the original URI. In contrast to 303, the request method should not be changed when reissuing the original request. For instance, a POST request must be repeated using another POST request.
[edit] 4xx Client ErrorThe request contains bad syntax or cannot be fulfilled.
The 4xx class of status code is intended for cases in which the client seems to have erred. 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. These status codes are applicable to any request method. User agents should display any included entity to the user. These are typically the most common codes encountered while online.
400 Bad Request The request contains bad syntax or cannot be fulfilled. 401 Unauthorized Similar to 403 Forbidden, but specifically for use when authentication is possible but has failed or not yet been provided. See Basic access authentication and Digest access authentication. 402 Payment Required 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 has never been used. 403 Forbidden The request was a legal 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. 405 Method Not Allowed A request was made of a resource using a request method not supported by that resource; for example, using GET on a form which requires data to be presented via POST, or using PUT on a read-only resource. 406 Not Acceptable 407 Proxy Authentication Required 408 Request Timeout Client failed to continue the request 409 Conflict 410 Gone Indicates that the resource requested is no longer available and will not be available again. This should be used when a resource has been intentionally removed; however, in practice, a 404 Not Found is often issued instead. 411 Length Required 412 Precondition Failed 413 Request Entity Too Large 414 Request-URI Too Long 415 Unsupported Media Type 416 Requested Range Not Satisfiable The client has asked for a portion of the file, but the server cannot supply that portion (for example, if the client asked for a part of the file that lies beyond the end of the file). 417 Expectation Failed
[edit] 5xx Server ErrorThe server failed to fulfill an apparently valid request.
Response status codes beginning with the digit "5" indicate cases in which the server is aware that it has errored or is incapable of performing the request. 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. User agents should display any included entity to the user. These response codes are applicable to any request method.
500 Internal Server Error 501 Not Implemented 502 Bad Gateway 503 Service Unavailable 504 Gateway Timeout 505 HTTP Version Not Supported
[edit] HTTP ExtensionsThe following are HTTP status codes that are not part of the official standard but are instead included in HTTP extensions.
102 Processing (WebDAV) (RFC 2518) 207 Multi-Status (WebDAV) The message body that follows is an XML message and can contain a number of separate response codes, depending on how many sub-requests were made. 418 I'm a Teapot(RFC 2324) HTCPCP response header 422 Unprocessable Entity (WebDAV) (RFC 4918) The request was well-formed but was unable to be followed due to semantic errors. 423 Locked (WebDAV) (RFC 4918) The resource that is being accessed is locked 424 Failed Dependency (WebDAV) (RFC 4918) The request failed due to failure of a previous request (e.g. a PROPPATCH). 425 Unordered Collection Defined in drafts of WebDav Advanced Collections, but not present in "Web Distributed Authoring and Versioning (WebDAV) Ordered Collections Protocol" (RFC 3648). 426 Upgrade Required (RFC 2817) The client should switch to TLS/1.0. 449 Retry With A Microsoft extension: The request should be retried after doing the appropriate action. 506 Variant Also Negotiates (RFC 2295) 507 Insufficient Storage (WebDAV) (RFC 4918) 509 Bandwidth Limit Exceeded This status code, while used by many servers, is not an official HTTP status code. 510 Not Extended (RFC 2774)

[edit] See alsoHypertext Transfer Protocol List of HTTP headers
[edit] References^ RFC 2616, section 8.2.3 — Use of the 100 (Continue) Status ^ Bugzilla
[edit] External linksHTTP specification, Section 10 WebDAV specification, Section 11 TLS Upgrade within HTTP specification, Section 4 HTTP Status Code Registry IANA registry Microsoft Internet Information Server Status Codes and Sub-Codes Adobe Flash status code definitions (ie 408) Hyper Text Coffee Pot Control Protocol (HTCPCP/1.0) Retrieved from