From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
Subject: Re: REJECT target not as policy
Date: Mon, 20 Aug 2007 22:27:55 +0200
Message-ID: <46C9F94B.7010503@plouf.fr.eu.org>
References: <20070820135206.GA18644@bart.bertram-scharpf.homelinux.com>	<200708201608.39032.r.laban@ism.nl>	<46C9B8A2.5040201@plouf.fr.eu.org><20070820174642.GA22613@bart.bertram-scharpf.homelinux.com>	<46C9E0E4.2080200@plouf.fr.eu.org>
	<000801c7e35d$f7d39210$0101000a@tanjian>
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Rob Sterenborg a =E9crit :
>=20
> You could emulate a REJECT policy by having this as the very last rules=
:
>=20
> $ipt -A INPUT -p tcp -j REJECT --reject-with tcp-reset
> $ipt -A INPUT -j REJECT
>=20
> (I thought it was like this..)

What was like what ?

> But, if you dynamically add rules then you have to take care of at/from
> which position you insert/delete them.

A user-defined chain comes in handy. Jump into it before the REJECT=20
rules and add the dynamic rules in it.

iptables -N input
iptables -A INPUT -j input
iptables -A INPUT -j REJECT

iptables -A input blah...