DDOS

[Russell.Butturini at Healthways.com (Butturini, Russell)]

What kind of firewall is it? Many vendors have controls such as embryonic connection limits and some QoS policing that 
can prevent this sort of thing.  We have a web presence of around 350 sites and using these techniques has mitigated 
most of our issues.

________________________________
From: pauldotcom-bounces at mail.pauldotcom.com [mailto:pauldotcom-bounces at mail.pauldotcom.com] On Behalf Of Geoff 
Shukin
Sent: Tuesday, April 20, 2010 4:37 PM
To: Pauldotcom at mail.pauldotcom.com
Subject: [Pauldotcom] DDOS

Hi!

I am curious to know what folks are doing to combat the issue of DDOS attacks.  I have heard about solutions from Arbor 
and TopLayer but wonder if they are effective.  Are there any other suggestions out there in PaulDotCom land?

We have seen DDOS attacks against one of our websites (using a combination of ICMP, TCP SYN and UDP flood attacks). 
Firewall stops the attacks in that the web servers are ok but the firewall falls over with 100% CPU.

Thanks

Geoff

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