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Date: Tue, 24 Oct 2006 12:46:42 +0300
From: Michael Shigorin <mike@osdn.org.ua>
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On Tue, Oct 24, 2006 at 10:29:46AM +0300, Kaydannik Alex wrote:
> >> Вопрос: Чем можно ограничить число установленных подключений
> >> или попыток установить подключение с одного IP адреса?
> > apt-get install mod_limitipconn
> C апачем проблем нет - этот мод уже подключен. А вот с
> остальными сервисами как?

-A http-flood -p tcp -m tcp -m limit --limit 1/s --limit-burst 2 -j ACCEPT
-A http-flood -j DROP
-A icmp-flood -p icmp -m icmp --icmp-type 8 -m limit --limit 5/s --limit-burst 25 -j ACCEPT
-A icmp-flood -p icmp -m icmp --icmp-type 8 -j DROP
-A syn-flood -m limit --limit 10/sec --limit-burst 50 -j RETURN
-A syn-flood -j DROP
-A bad-packets -m state --state INVALID -j DROP

-- 
 ---- WBR, Michael Shigorin <mike@altlinux.ru>
  ------ Linux.Kiev http://www.linux.kiev.ua/