RE: DDoS protection

[Jácint TÓTH <Jacint.Toth () xapt com>]

Hi,

The answer to the first question is "it depends". At bandwidths that Your ISP can easily handle, the answer is probably 
no, their equipment is better placed and probably of a higher grade, so it is better to handle the DDoS protection 
there, and just put some "of sound mind" sort of things on Your end to handle small-scale stuff that may no even 
trigger detection thresholds at the ISP.

Now on the other hand, if you are in a large hosted environment like a server hotel hooked up directly to an Internet 
Exchange, or are handling huge amounts of traffic in a datacenter, maybe even function as a traffic concentrator for a 
larger MAN/WAN/GAN, then it does make sense to have an own solution for the purpose of DDoS protection and maybe 
firewalling integrated with it. At 10G and higher traffic links and/or several 100s of thousands of RPS on NORMAL 
traffic, You would probably want to know exactly what You are working with, what's happening to it, and eliminate the 
delays with having an external entity manage the service.

Cost-wise, You have to measure cost vs. potential risk and loss of income if You don't have these, and this calculation 
will almost always happen to bring You into the 6-digit range in a year at least (USD), as there are significant costs 
associated with procuring/implementing/operating/supporting such devices. So if you are far beneath that range 
budget-wise or traffic-wise, don't bother, go with the managed service of the ISP.

As for the second question, at first thought there is A10 Networks who have several appliances up to N*40Gb bandwidth 
for both dedicated DDoS protection and integrated into an application firewall/load balancer, and Cisco's Guard XT 
series is also an option if You are playing in this league. Ctrix's Netscalers are balancers /ALGs that can help You 
with DDoS-protection for certain protocols, but these are not really dedicated security devices. 

If you just want to go for "something", or build something small-scale, then You coul do some testing with say Aache 
mod_security on an OpenBSD or FreeBSD with pf, these are working fine on a small scale and are cheap to build and 
maintain, but You'll probably end up managing them Yourself and bear in mind, community support is nothing compared to 
what a large vendor will provide. 

Cheers,
--
Jacint


-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On Behalf Of kartik.netec () gmail com
Sent: Monday, June 16, 2014 10:17 AM
To: security-basics () securityfocus com
Subject: DDoS protection

Hi,

My question is about the DDoS protection appliances. Is it really worth spending $$$$$ buying a DDoS appliance if we 
already had DDoS subscription from the ISPs?

And apart from Arbor and Fortinet, do we have any other big player in this technology?

PS: we are not evaluating cloud based DDoS protection.

Please advise.

Thanks,
KT

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------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------