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I'm interested in block or traffic-shaping connections made from my system to a host given by a URL.

The problem is that the URL is re-mapped to a different IP address every several minutes (I believe it's called an Amazon Elastic-IP instance?). I also don't think it's practical to map all those IPs - the Amazon cloud is big.

/etc/hosts can be used to completely block the host-name, but I'm mostly interested in shaping the traffic (drop frames, throttle, etc.)

It appears that ipfw resolves a host-name during rule setting, so it's impractical to just use the URL.

Is there a way to force ipfw intercept traffic to a host-name, instead of an IP address?

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