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Re: any recommendable anti-ddos solution?
From: "Carlos Silva" <carlosmiguel.silva () gmail com>
Date: Wed, 29 Aug 2007 10:58:32 +0100

Dereck, your solution will work fine if only a couple of hosts are
doing the attack. But 2GB of traffic are certainly hundreds, or maybe
thousands, of hosts deploying the attack.

Nevertheless the problem isn't the IDS located in the destination of
the attacks. The problem is: how will we manage 2GB of traffic
arriving on our internet links??? It's easy, we can't!!! Only our
ISP's will have the possibility to detect and block that traffic.
Cisco Guard is a very good solution for that! I, personally, would
like to know other solutions, commercial or free (if any).

Best regards,
Carlos Silva

On 8/28/07, Brett Kennedy <Brett.Kennedy () caseware com> wrote:
Why do you specifically want a commercial solution?

Brett


-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On Behalf Of theog
Sent: August 28, 2007 8:14 AM
To: 'Monty Ree'; security-basics () securityfocus com
Subject: RE: any recommendable anti-ddos solution?

Well DDOS attacks usually have something behind them , try to find out the
reason for it if there is one for example, do u have a web server on your
DMZ?, an FTP server? What is the nature of the attack? There are various
solutions, non of them will give you 100% effect of avoiding a DDOS attack
depending on the nature of your attack you can choose the way to reduce its
impact, for example hosting your web server elsewhere of using NGP with an
additional ISP and a load balancer here is a nice document regarding BGP
and DDOS http://staff.science.uva.nl/~delaat/snb-2004-2005/p27/report.pdf



Enjoy... ;)

Liran Cohen
RCT Internet solutions.
http://dir.rct.co.il
http://www.rct.co.il

-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On
Behalf Of Monty Ree
Sent: Monday, August 27, 2007 6:52 PM
To: security-basics () securityfocus com
Subject: any recommendable anti-ddos solution?

Hello, list.

These days our network has been suffering from various ddos attack(syn
flooding, udp flooding...etc).
from time to time, ddos traffic is over 2G bps and this makes all network
service including firewall and IPS go down..

So is there any recommendable commercial anti-ddos equipment or solution?
I have heard about the cisco guard & detector and many say that only this
can fight against ddos attack. right?

But it seems that other anti ddos solution comes...
Please recommend commercial anti ddos solution for me.


Thanks in advance...

_________________________________________________________________
편리한 웹하드가 최대 1G 까지 무료!
http://im.msn.co.kr/new/function/function_02_11.asp






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