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Addition to KB942045

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This posting is provided "AS IS" with no warranties, and confers no rights.

If you are familiar with IIS 7, you will notice an important feature added named Request Filtering.

Then you must know the following KB article,

https://support.microsoft.com/kb/942045

However, a latest query from a user reveals a new question. This guy wants to block all unknown extensions (by setting allowUnlisted to false), but he noticed that he received a 404.7 error when accessing https://(server_name)/ which has no extension specified.

So how to make it work? Well, a simple trick is to add a new Allow rule whose extension is “.” (yes, a simple DOT). This extra rule will allow you to access “/” and redirect you to the default document configured.

It is a pity that such trick is not included in the KB article, but now you know how to do it. Open-mouthed