Tag Archives: DDoS

NANOG: Botnets, DDoS and Ground-Truth

Here at NANOG 50 Craig Labovitz just gave an interesting talk about botnet data derived from Arbor Network customers enabling anonymous data (37 ISPs over last 12 months), of 5,000 events classified by operators.

60% of DDoS attacks are by flooding. Yet most attacks involve few IP addresses; indicates address spoofing.

Slight problem: only 1/4 of customers have enabled anonymous data. “Real goal of this talk is to encourage participation.”

Well-received talk.


Debunking the Tragedy of the Commons

x7579e05.gif Interesting article here making a point that should have been obvious for forty years. When Garrett Hardin published his famous article about the “tragedy of the commons” in Science in December 1968, he cited no evidence whatsoever for his assertion that a commons would always be overgrazed; that community-owned resources would always be mismanaged. Quite a bit of evidence was already available, but he ignored it, because it said quite the opposite: villagers would band together to manage their commons, including setting limits (stints) on how many animals any villager could graze, and they would enforce those limits.

Finding evidence for Hardin’s thesis is much harder:

The only significant cases of overstocking found by the leading modern expert on the English commons involved wealthy landowners who deliberately put too many animals onto the pasture in order to weaken their much poorer neighbours’ position in disputes over the enclosure (privatisation) of common lands (Neeson 1993: 156).

Hardin assumed that peasant farmers are unable to change their behaviour in the face of certain disaster. But in the real world, small farmers, fishers and others have created their own institutions and rules for preserving resources and ensuring that the commons community survived through good years and bad.

Debunking the `Tragedy of the Commons’, By Ian Angus, Links, International Journal of Socialist Renewal, August 24, 2008

So privatization is not, as so many disciples of Hardin have argued, the cure for the non-existant tragedy of the commons. Rather, privatization can be the enemy of the common management of common resources.

What does this have to do with risk management? Well, insurance is the creation of a managed commons by pooling resources. Catastrophe bonds are another form of pooled resources, that is, a form of a commons.

On the Internet, the big problem with fighting risks like phishing, pharming, spam, and DDoS attacks is that the victims will fail if they go it alone. The Internet is a commons, and pretending that it isn’t is the problem. Most people and companies don’t abuse the Internet. But a few, such as spam herders and some extremist copyright holders (MPAA, RIAA), do. They need to be given stints by the village.