Geoff Arnold

This is why:

OpenDNS, the San Francisco security startup that runs the PhishTank anti-phishing initiative, has been hit by a massive DDoS (distributed denial-of-service attack).

The 400mbps botnet attack did not affect the company’s core recursive DNS resolution service. The OpenDNS.com home page and corporate blog were crippled for about 90 minutes on Dec. 1.

The attack appears to be targeting EveryDNS, a sibling business owned and operated by OpenDNS CEO David Ulevitch. OpenDNS uses services from EveryDNS.

I actually got hit from two directions. First, I use EveryDNS as the DNS authority for geoffarnold.com. Second, it turns out that one of EveryDNS’s servers was located in the same physical rack as grommit (the system that hosts geoffarnold.com), so the attack consumed most of the bandwidth into our (shared) switch.

This entry was posted on Saturday, December 2nd, 2006 at 10:27 pm and is filed under Blogosphere, Hmmm. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.