Errors

Aliasing Bug

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/ˈālēəsiNG bəɡ/

n. A class of subtle programming errors that can arise in code that does dynamic allocation, esp. via 'malloc(3)' or equivalent. If more than one pointer addresses ('aliases for') a given hunk of storage, it may happen that the storage is freed through one alias and then referenced through another, which may lead to subtle (and possibly intermittent) lossage depending on the state and the allocation history of the malloc arena. Avoidable by use of allocation strategies that never alias allocated core.

511

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Network Authentication Required

The 511 status code indicates that the client needs to authenticate to gain network access.

510

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Not Extended

Further extensions to the request are required for the server to fulfill it.

508

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Loop Detected (WebDAV)

The server detected an infinite loop while processing the request.

507

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Insufficient Storage (WebDAV)

The method could not be performed on the resource because the server is unable to store the representation needed to successfully complete the request.

506

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Variant Also Negotiates

The server has an internal configuration error: the chosen variant resource is configured to engage in transparent content negotiation itself, and is therefore not a proper end point in the negotiation process.

505

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HTTP Version Not Supported

The HTTP version used in the request is not supported by the server.

504

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Gateway Timeout

This error response is given when the server is acting as a gateway and cannot get a response in time.

503

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Service Unavailable

The server is not ready to handle the request. Common causes are a server that is down for maintenance or that is overloaded. Note that together with this response, a user-friendly page explaining the problem should be sent. 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.

502

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Bad Gateway

This error response means that the server, while working as a gateway to get a response needed to handle the request, got an invalid response.

Errors

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