[arch-general] IPTables DDoS

[Nilesh Govindarajan]

On Tue, Jul 20, 2010 at 1:21 PM, vlad <vla at uni-bonn.de> wrote:
> Hello,
>
> The recent module is good for that:
> http://www.sollers.ca/blog/2008/iptables_recent
> http://www.google.com/search?q=iptables+recent
> I have in my fw script:
> "
>  $TABLES -A limitations -m recent --name RECENT_FILTER --set
>  $TABLES -A limitations -m recent --name RECENT_FILTER --rcheck --hitcount 6 -j recent_allowed_input
>  $TABLES -A limitations --match limit --limit $LOGLIMIT --limit-burst $LOGLIMITBURST -j LOG --log-prefix "stuff: "
>  $TABLES -A limitations -m recent --name RECENT_ALLOW --set
>  $TABLES -A limitations -j DROP
>
>  $TABLES -A recent_allowed_input -m recent --name RECENT_ALLOW --update --seconds 300 -j ACCEPT
>  $TABLES -A recent_allowed_input -m recent --name RECENT_FILTER --remove -j DROP
> "
> Then you can do smth like
> "
>  $TABLES -A INPUT <....> -j limitations
> "
> to apply the rules.
>
> Vlad
>
>

Looks good, do your HTTP users face any problem with it?

-- 
Regards,
Nilesh Govindarajan
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