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From "William A. Rowe, Jr." <wr...@rowe-clan.net>
Subject Re: [users@httpd] Setting the Timeout directive to refrain a DoS attacks
Date Thu, 25 Jun 2009 15:17:30 GMT
André Warnier wrote:
> fredk2 wrote:
>> Would'nt you think that a (simple) timer for the header could fend off
>> some
>> of the effect.  Can't we assume that if it takes more than 3 second to
>> enter
>> the header we do not want that client (i'll have to learn to type
>> faster in
>> telnet :-).
>>
> 
> For the headers, I think it might help.
> But I'm sure that then the attack would switch to sending the headers
> fast, and then a long POST body, veeeeery slowly...
> 
> On another track, it seems that the "Event MPM" model of Apache also is
> relatively insensitive to the slowloris thing.

... except, again for POST bodies.  Event MPM does not help, there.



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