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Hi, I'm looking for a firewall (preferably on Linux / UNIX) that could automatically block bandwidth abusers as soon as a connection goes over a certain speed, or limit - i.e. either more than say 3Mb/s or 10GB in a giving period (like weekly / monthly). But, I need it to block the IP to, or where the traffic comes from, or goes to. i.e. a user logs into a web server and upload a LOT of