From mboxrd@z Thu Jan 1 00:00:00 1970 From: "J. Bakshi" Subject: Re: try to change os fingerprint Date: Fri, 21 Aug 2009 17:30:06 +0530 Message-ID: <4A8E8C46.7080702@infoservices.in> References: <4A8E5BD6.5040904@infoservices.in> <1250855388.6489.21.camel@jaspav.missionsit.net.missionsit.net> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1250855388.6489.21.camel@jaspav.missionsit.net.missionsit.net> Sender: netfilter-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: "John A. Sullivan III" Cc: netfilter@vger.kernel.org John A. Sullivan III wrote: > On Fri, 2009-08-21 at 14:03 +0530, J. Bakshi wrote: > >> Hello, >> >> I am trying to change the OS fingerprint with iptables. Here are two >> rule set which I have constructed to do the same >> >> ```````` >> iptables -t mangle -A PREROUTING - -j PERS --tweak dst --local --conf >> example/win9x.conf >> iptables -t mangle -A OUTPUT -j PERS --tweak src --local --conf >> example/win9x.conf >> ```````````` >> >> But it throws an error like >> >> `````````` >> iptables v1.4.2-rc1: Unknown arg `--tweak' >> Try `iptables -h' or 'iptables --help' for more information. >> ``````````````` >> >> What might be the problem here ? >> Thanks >> > > I'm not familiar with the PERS target. It does not show up in my > iptables. Is it available in your kernel or do you need to load and > perhaps compile a module for it? - John > I am not very sure but maybe we need to patch the kernel. Any clue from anyone ? Thanks