RE: UDP DoS mitigation?

2008-12-13 Thread Ian Henderson
Rick Ernst wrote on 2008-12-13: > - This instance was a DoS, not DDoS. Single source and destination, > but > the source (assuming no spoofing) was in Italy. Turning off netflow > seemed to help, but the attack itself stopped at about the same time. Before moving to hardware based platforms

Re: DDOS - How much is "too much"?

2008-12-13 Thread Jeffrey Lyon
DDoS protection packages are generally sold with Mbps, PPS, and often TCP-SYN / UDP session limits. -- Jeffrey Lyon, Leadership Team jeffrey.l...@blacklotus.net | http://www.blacklotus.net Black Lotus Communications of The IRC Company, Inc. Look for us at HostingCon 2009 in Washington, DC on Augu

Re: Netblock reassigned from Chile to US ISP...

2008-12-13 Thread Andy Davidson
On 13 Dec 2008, at 12:39, Steven M. Bellovin wrote: On Fri, 12 Dec 2008 16:33:51 -0800 "Tomas L. Byrnes" wrote: Because anyone with half a brain blocks proxies from their e- commerce site. What is a proxy? A garden-variety squid server, in the DMZ of a corporate firewall? The nasty box i

Re: Netblock reassigned from Chile to US ISP...

2008-12-13 Thread Steven M. Bellovin
On Fri, 12 Dec 2008 16:33:51 -0800 "Tomas L. Byrnes" wrote: > Because anyone with half a brain blocks proxies from their e-commerce > site. > What is a proxy? A garden-variety squid server, in the DMZ of a corporate firewall? The nasty box in some hotels that "helps" guests surf the net? A so

Dedicated server provider in LA

2008-12-13 Thread Jasper Bryant-Greene
Hi all, Apologies for the operational content, does anyone know (or is anyone) a dedicated server provider who can get a Linux server online for us in the next three hours? We urgently need to move a live site due to system failure. Preferably west coast USA, but beggars can't be choosers

Re: Security Intelligence [Was: Re: Netblock reassigned from Chile to US ISP...]

2008-12-13 Thread Randy Bush
The point I am trying to make here is that ISPs should much more engaged in this entire process. most of the larger isps have reasonable security teams with some good folk. but you need to be much more specific about what you want from medium and smaller isps, and what the immediate payoffs (

Re: Security Intelligence [Was: Re: Netblock reassigned from Chile to US ISP...]

2008-12-13 Thread Randy Bush
If folks think that people are not "doing" massive correlation of criminal activity on the Internet, they would be mistaken. engineers judge by the results. and, unfortunately, we can read them in the ny times. though some recent papers sure make interesting reading. just picking on one pa

Re: Security Intelligence [Was: Re: Netblock reassigned from Chile to US ISP...]

2008-12-13 Thread Paul Ferguson
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Not in the habit of responding to my e-mail, but... On Sat, Dec 13, 2008 at 12:29 AM, Paul Ferguson wrote: > > On Sat, Dec 13, 2008 at 12:22 AM, James Hess wrote: > >> >> An in-depth strategy with hundreds or thousands of factors examined >> resul

Security Intelligence [Was: Re: Netblock reassigned from Chile to US ISP...]

2008-12-13 Thread Paul Ferguson
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Sat, Dec 13, 2008 at 12:22 AM, James Hess wrote: > > An in-depth strategy with hundreds or thousands of factors examined > results in a smaller > (but still present) possibility of the filter/detector being fooled. > > IP-based methods can be com

Re: Netblock reassigned from Chile to US ISP...

2008-12-13 Thread James Hess
>> On 08.12.13 09:33, Tomas L. Byrnes wrote: >>> anyone with half a brain blocks proxies from their e-commerce site. >> can you know at a reasonable confidence level that it's a proxy? > Give me an IP address (privately, of course). I can tell you if it is, with > consult from other colleagues in t