You can further limit the risk of inappropriate serving of content by disabling file serving and directorybrowsing in your Web applications.
您可以通过禁用Web应用程序中的文件服务和目录浏览来进一步限制内容服务不适当的风险。
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This includes both the built-in IIS modules that ship with Windows (like the directorybrowsing module), as well as additional modules available as separate downloads.