Preventing a DDOS Attack?

[cpryor08]

Is there any full-proof way to tell the server not to respond to a ddos attack? I know some routers have the settings to not respond. Is there anything I can do?

[Edge100x]

It's not simple, unfortunately. First, the server has to realize that there's a DDoS going on, for instance, which isn't always easy. Second, it then has to determine which traffic is attack traffic and which isn't, and filter just the attack traffic -- another complicated task. It has to do these tasks without overloading the machine itself, and the DDoS attack also needs to be small enough that it doesn't overwhelm the transit capacity.