[Kamailio-Users] How to handle DoS attack and OpenSER Pike module!

[Daniel-Constantin Mierla]

Hello,

On 10/14/08 09:32, Arif-Uz-Zaman wrote:
> Hi all,
> I need to bother about crazy client by considering “Flood” detection 
> technique. I can do it by using OpenSER Pike 
> <http://kamailio.org/docs/modules/1.2.x/pike.html> module which helps 
> to keep trace of all (or selected ones) incoming request's IP source 
> and blocks the ones that exceeded some limit.
>
> In my case: If the number of SIP messages from a single IP address to 
> my SIP Proxy exceeds *200* per minute. Recommended action: Block IP 
> for 2 hours.
>
> I tried with the pike module but I’m little bit confused with 
> sampling, density, and timeout value.
>
> Please help me with example configuration by considering my point.
>
have you tried:

modparam("pike", "sampling_time_unit", 60)
modparam("pike", "reqs_density_per_unit", 200)
modparam("pike", "remove_latency", 7200)


Cheers,
Daniel

-- 
Daniel-Constantin Mierla
http://www.asipto.com