Re: conntrack is bad during DDoS?

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Florin Andrei wrote:
> Florin Andrei wrote:
> 
>> I understand the thing about stateless NAT and 2.6.24 - that's very
>> good news, too bad it's not in older versions. :-)
> 
> 
> Come to think of it, I need explanations for this one too. :-)
> Is that true only for 1:1 NAT, or NAT in general? If the former, is that
> a special new case, requiring different iptables rules, or something else?


Its implemented as TC action, so its independant of iptables. It only
supports 1:1 NAT, everything else needs to be stateful to avoid clashes.

> I assume these are recent changes to netfilter - is there a place where
> I can find these specific changes documented or discussed?


Check the netdev archives of the past two or three weeks.
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