IIS 로그~ PTIONS method
??!@discussions.microsoft.com OS 초보!
OPTION 이란 값이 찍혀 있어서 관련 내용을 찾아 보았지만
제가 이해해하기 힘들어서.. .이렇게 문의 합니다.
해석을 바라는것은 아니고 OPTION 은 뭘까요?
답변을... 부탁드립니다.
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The OPTIONS method represents a request for information about the
communication options available on the request/response chain identified by
the Request-URI. This method allows the client to determine the options
and/or requirements associated with a resource, or the capabilities of a
server, without implying a resource action or initiating a resource
retrieval.
Responses to this method are not cacheable.
If the OPTIONS request includes an entity-body (as indicated by the presence
of Content-Length or Transfer-Encoding), then the media type MUST be
indicated by a Content-Type field. Although this specification does not
define any use for such a body, future extensions to HTTP might use the
OPTIONS body to make more detailed queries on the server. A server that does
not support such an extension MAY discard the request body.
If the Request-URI is an asterisk ("*"), the OPTIONS request is intended to
apply to the server in general rather than to a specific resource. Since a
server's communication options typically depend on the resource, the "*"
request is only useful as a "ping" or "no-op" type of method; it does nothing
beyond allowing the client to test the capabilities of the server. For
example, this can be used to test a proxy for HTTP/1.1 compliance (or lack
thereof).
If the Request-URI is not an asterisk, the OPTIONS request applies only to
the options that are available when communicating with that resource.
A 200 response SHOULD include any header fields that indicate optional
features implemented by the server and applicable to that resource (e.g.,
Allow), possibly including extensions not defined by this specification. The
response body, if any, SHOULD also include information about the
communication options. The format for such a
body is not defined by this specification, but might be defined by future
extensions to HTTP. Content negotiation MAY be used to select the appropriate
response format. If no response body is included, the response MUST include a
Content-Length field with a field-value of "0".
The Max-Forwards request-header field MAY be used to target a specific proxy
in the request chain. When a proxy receives an OPTIONS request on an
absoluteURI for which request forwarding is permitted, the proxy MUST check
for a Max-Forwards field. If the Max-Forwards field-value is zero ("0"), the
proxy MUST NOT forward the message; instead, the proxy SHOULD respond with
its own communication options. If the Max-Forwards field-value is an integer
greater than zero, the proxy MUST decrement the field-value when it forwards
the request. If no Max-Forwards field is present in the request, then the
forwarded request MUST NOT include a Max-Forwards field.
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