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change "allowed file extensions" to "file extensions not allowed" [message #4436] Fri, 26 July 2002 20:35 Go to next message
computer_dan is currently offline  computer_dan   Canada
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currently, the administrator option for 'file filters' is to create a list of file extensions that are allowed. Does it make sense to do the opposite and create a list of file extensions that are not allowed?

Re: change "allowed file extensions" to "file extensions not allowed" [message #4445 is a reply to message #4436] Fri, 26 July 2002 20:57 Go to previous message
Ilia is currently offline  Ilia   Canada
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computer_dan wrote on Fri, 26 July 2002 16:35

currently, the administrator option for 'file filters' is to create a list of file extensions that are allowed. Does it make sense to do the opposite and create a list of file extensions that are not allowed?




Arguably, generally people would only like to permit a few extensions of files people can upload. The reason being it is very hard to block all extensions that you do not want. For example, if you wanted to block all file extensions of files that are executable (programs) on Windows.
Well, there are the obvious .com .exe .dll .bat, but there are plenty of other windows will execute without a second thought, like .vbx etc... You probably will never be able to block them all. It is simpler to only list the extensions you want to allow.


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