From: Chris Brenton <cbrenton@chrisbrenton.org>
To: Rodre Ghorashi-Zadeh <rodrico7@hotmail.com>
Cc: netfilter@lists.netfilter.org
Subject: Re: OS Fingerprint
Date: 18 Nov 2003 09:29:05 -0500 [thread overview]
Message-ID: <1069165744.1078.4.camel@valhalla> (raw)
In-Reply-To: <Law14-F6682qhpp8eur0000b7c9@hotmail.com>
On Tue, 2003-11-18 at 05:05, Rodre Ghorashi-Zadeh wrote:
>
> Does anybody on this list have a rule that I can use to change the OS
> fingerprint of all packets leaving my DMZ? Thanks in advance.
Os passive fingerprinting is typically done with ICMP type 8's as well
as TCP SYN packets. Its possible to do it with SYN/ACKs, but its not
easy.
You could use iptables to rewrite the TTL. That usually the first value
people key in on to do OS detection. That, and its something you could
do to "all packets" as you require. It will not fool everyone, but any
other changes will only be applicable to certain packets.
HTH,
C
next prev parent reply other threads:[~2003-11-18 14:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-18 10:05 OS Fingerprint Rodre Ghorashi-Zadeh
2003-11-18 10:57 ` Antony Stone
2003-11-18 14:29 ` Chris Brenton [this message]
2003-11-18 15:57 ` Maciej Soltysiak
-- strict thread matches above, loose matches on Subject: below --
2003-11-18 11:14 hclfm
2004-11-29 21:57 Vlado Had
2004-11-30 14:21 ` Aleksandar Milivojevic
2004-11-29 22:12 Daniel Chemko
2004-11-30 4:02 ` Bryan Shake
2004-11-29 22:27 Hudson Delbert J Contr 61 CS/SCBN
2004-11-30 14:15 谷子
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1069165744.1078.4.camel@valhalla \
--to=cbrenton@chrisbrenton.org \
--cc=netfilter@lists.netfilter.org \
--cc=rodrico7@hotmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.