Ben,
That method is exactly what I am trying to find. It is similar if not identical to what Microsoft made available for IIS 7.5 and what comes natively in IIS 8. If I had a Linux based installation, I would definitely be working it to see it operate, unfortunately, I'm a 2008R2 platform. There must be an IBM coder who could place that functionality into the Domino server... would sure eliminate a lot of hack attacks.