From: Chris Brenton <cbrenton@chrisbrenton.org>
To: Thomas Preissler <tomjohn@gmx.de>
Cc: netfilter-user Mailinglist <netfilter@lists.netfilter.org>
Subject: Re: How to make a computer invisible
Date: Sun, 30 Nov 2003 13:31:41 -0500 [thread overview]
Message-ID: <1070217100.2884.9.camel@grendel> (raw)
In-Reply-To: <20031130181240.GD6930@zeus.tpfm.de>
On Sun, 2003-11-30 at 13:12, Thomas Preissler wrote:
>
> how do I really make a computer totally invisibly as it would be
> when it does not exist?
Leave the power switch in the "off" position. ;-)
> It is clear, that the simplest solution is to DROP all incoming
> packets,
Actually, dropping packets is a clear indication that you do in fact
have a firewall protecting one or more systems. Its the only condition
which will cause ICMP error packets to not be returned consistently.
You would be better off rejecting with host unreachables. then your
firewall looks like a simple router, and the host in question looks like
it is powered down.
HTH,
C
next prev parent reply other threads:[~2003-11-30 18:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-30 18:12 How to make a computer invisible Thomas Preissler
2003-11-30 18:31 ` Chris Brenton [this message]
2003-11-30 19:32 ` Leonardo Rodrigues Magalhães
2003-11-30 18:53 ` Chris Brenton
2003-11-30 19:49 ` Leonardo Rodrigues Magalhães
-- strict thread matches above, loose matches on Subject: below --
2003-12-01 9:59 ph4ke
2003-12-02 4:40 Babar Kazmi
2003-12-02 15:14 ` Michael Gale
2003-12-02 15:48 ` Chris Brenton
2003-12-02 16:01 ` Michael Gale
2003-12-02 18:09 ` Chris Brenton
2003-12-02 16:26 ` Thomas Preissler
2003-12-02 18:19 ` Chris Brenton
2003-12-02 19:48 ` Arnt Karlsen
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