Comment Have the ISP handle the attack for you (Score 1) 336
We were once DDoSed and we first called our colocation guys (that also manages our firewalls) if they could do it, the technician could do nothing. They called their ISP and they quickly found that the majority of the traffic came from countries we don't do business in so they simply blocked (or routed away) traffic from those countries going to our net and the site became instantly accessible again. The ISP has an anti-DDoS service that does this automatically based on some threshold magic. This is a service we are going to get.