From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Hissler <mhis38@freenet.de>
Subject: Re: Rate Limiting After a Threshold
Date: Fri, 06 Jul 2007 19:56:13 +0200
Message-ID: <468E823D.20105@freenet.de>
References: <468D63F2.7060402@siemens.com> <468E17E9.7030902@freenet.de>
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John Jung wrote:
> Hi Michael,
> 
> Michael Hissler wrote:

>> iptables -A INPUT -m state --state ESTABLISHED -j ACCEPT
>> iptables -A INPUT -p tcp --dport 23 -m state --state NEW -m hashlimit
>> --hashlimit 1/hour --hashlimit-mode srcip --hashlimit-burst 1
>> --hashlimit-name test -j ACCEPT
>> iptables -A INPUT -p tcp --dport 23 -m state --state NEW -j REJECT
> 
>   This still doesn't quite do what I want it to do (I'm able to open up
> more than 1 telnet session per IP per hour), but it's close enough for
> what I need.

Sorry, my fault! I forgot to add '--hashlimit-htable-expire 3600000'.
Per default, hashtable entries expire after 10 seconds.
See /proc/net/ipt_hashlimit/test, the first column shows the remaining
time in seconds.

michael