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SubjectRe: linux kernel TCP, network connections and iptables
On Thu, 7 Sep 2000 kuznet@ms2.inr.ac.ru wrote:

:By any _formal_ criteria there is no DoS here. You reply with one packet
:to each incoming packet and do not hold any state. Where is DoS?

Maybe I did not make clear where the DoS is. Well my machine DOES NOT
hang. But the NIC is busy replying thousands of RST's and thus it cannot
even send a single packet outside to the pc next door. That is, its
network is dead.

:
:Note, that as soon as you will try to remember state, you open way
:for true DoSes. 8)
:
:Alexey
:

I did not say I want to remember states. I said to read what kernel
has already in /proc/net/tcp but faster and kinda more native, to use
it for a flash of a second.

--
George Athanassopoulos
http://www.real.macedonia.gr
http://www.egnatia.ee.auth.gr

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