One big problem (IMHO) of DDoS is that sources (the host of botnets) may be completely unaware that they are part of a DDoS. I do not mean the bot machine, I mean the ISP connecting those. In the other hand the target of a DDoS cannot do anything to stop to attack besides adding more BW or contacting one by one the whole path of providers to try to minimize the effect. I know that this has many security concerns, but would it be good a signalling protocol between ISPs to inform the sources of a DDoS attack in order to take semiautomatic actions to rate-limit the traffic as close as the source? Of course that this is more complex that these three or two lines, but I wonder if this has been considerer in the past. Regards. -as On 8 Dec 2010, at 10:00, nanog-request@nanog.org wrote:
Date: Wed, 8 Dec 2010 10:58:38 +0000 From: bmanning@vacation.karoshi.com Subject: Re: Over a decade of DDOS--any progress yet? To: "Dobbins, Roland" <rdobbins@arbor.net> Cc: North American Operators' Group <nanog@nanog.org> Message-ID: <20101208105838.GD5841@vacation.karoshi.com.> Content-Type: text/plain; charset=us-ascii
actually, botnets are an artifact. claiming that the tool is the problem might be a bit short sighted. with the evolution of Internet technologies (IoT) i suspect botnet-like structures to become much more prevelent and useful for things other than coordinated attacks.
just another PoV.
--bill
On Wed, Dec 08, 2010 at 04:46:13AM +0000, Dobbins, Roland wrote:
On Dec 8, 2010, at 11:26 AM, Sean Donelan wrote:
Other than trying to hide your real address, what can be done to prevent DDOS in the first place.
DDoS is just a symptom. The problem is botnets.
Preventing hosts from becoming bots in the first place and taking down existing botnets is the only way to actually *prevent* DDoS attacks. Note that prevention is distinct from *defending* oneself against DDoS attacks.
----------------------------------------------------------------------- Roland Dobbins <rdobbins@arbor.net> // <http://www.arbornetworks.com>
Sell your computer and buy a guitar.