HTTP 5xx Server Error Codes

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Applies To: Windows Server 2003, Windows Server 2003 with SP1

Error codes in the 5xx range indicate server problems. Table 11.9   HTTP 500-Class Client Error Codes Returned by IIS lists the HTTP 5xx-class codes that IIS returns. The descriptions for most codes are self-explanatory. When additional information about a code is required, it is provided in one of the following sections.

Table 11.9 HTTP 500-Class Client Error Codes Returned by IIS

Status Code Condition

500.x

Internal server error.

501

Header values specify a configuration that is not implemented.

502

Bad gateway.

503

Service unavailable.

504

Gateway timeout.

505

HTTP version not supported.