Restrict IIS virtual directory to specific HTTP host header?

限制IIS虚拟目录到特定的HTTP主机头？

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If the application specifies a Host header, then this value will be used as domain.

如果应用程序指定主机标头，则会以其值作为网域。

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The key used when caching resources, USES the Host header value rather than the request URI.

快取资源时使用的索引键会使用主机标头值，而非要求uri。

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The champions missed a host of chances, with Didier Drogba going closest when his wonderful header hit the bar.

BBC: Birmingham 1-0 Chelsea