nanog mailing list archives

Re: DDoS Question


From: Roland Dobbins <rdobbins () cisco com>
Date: Fri, 28 Sep 2007 07:28:03 +0700



On Sep 28, 2007, at 6:49 AM, Ken Simpson wrote:

You might want to look at some kind of edge email
traffic shaping layer.

So that 'Curtis Blackman' is the only one getting SMTP through to Martin and his customers?

;>

Assuming nothing in the header which could be blocked by S/RTBH or ACLs (or a QoS policy), some of the various DDoS scrubbers available from different vendors may be able to deal with this via the anomalous TCP rates associated with these streams of spam, and/or regexp.

-----------------------------------------------------------------------
Roland Dobbins <rdobbins () cisco com> // 408.527.6376 voice

           I don't sound like nobody.

               -- Elvis Presley


Current thread: