I am trying to block the downloading of MPG , WMA, ZIP and EXE files through my firewall instead of having to blacklist every site in the known universe.
I know that I could just put EXE, or whatever, in the blacklist, but that catches way to many other sites. I just want to deny access to specific types of files. I have tried putting in, for example, \.mpg$ but they still get through.
Also, are these expressions case sensitive?
Also, I am totally at a loss as to how to form a regexp expression. I tried the link provided in the ASL help, but ended up even more confused.
Thanks for any help with this,
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