From owner-freebsd-security Mon Jun 7 22:19:18 1999 Delivered-To: freebsd-security@freebsd.org Received: from firewall.itsec-debis.de (gatekeeper.itsec-debis.de [195.227.50.26]) by hub.freebsd.org (Postfix) with ESMTP id 483C414E0D for ; Mon, 7 Jun 1999 22:18:35 -0700 (PDT) (envelope-from rhs@itsec-debis.de) Received: by firewall.itsec-debis.de œid HAA25365; Tue, 8 Jun 1999 07:20:40 GMT Received: by firewall.itsec-debis.de via smap id xma025363; Tue, 8 Jun 99 07:20:22 GMT Received: by itsec-debis.de id HAA24050; Tue, 8 Jun 1999 07:32:31 +0200 Message-ID: <19990608073228.A11419@merlin.itsec-debis.de> Date: Tue, 8 Jun 1999 07:32:28 +0200 From: Randolf-Heiko Skerka To: security@FreeBSD.ORG Subject: Re: Preventing users from .... References: <375C26BA.3B5414F5@tdnet.com.br> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 X-Mailer: Mutt 0.91i In-Reply-To: <375C26BA.3B5414F5@tdnet.com.br>; from Unknow User on Mon, Jun 07, 1999 at 08:08:26PM +0000 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by itsec-debis.de id HAA24050 Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Mon, Jun 07, 1999 at 08:08:26PM +0000, Unknow User wrote: > How could i prevent ones from detecting which OS/WEB Server i am using? > There are script (http://www.unix-vs-nt.org) that can do it! Well, try http://www.genocide2600.com/~tattooman/ there are several paper= s on that topic. Another ressource is http://www.insecure.org/index.html th= e homepage of nmap. I think there are some other papers on os detection prevention. There must be an article from Phrack about fingerprinting. It= =B4s quite good. Randolf Skerka --=20 +------------------------------------------------------------------------= + | Randolf Skerka debis IT Security Services = | | Tel. +49-228-9841-510 Rabinstrasse 8, 53111 Bonn = | | 2 weeks free trial: Security news every day www.dcert.de = | | 14 Tage kostenlos tagesaktuelle Sicherheitsmeldungen www.dcert.de = | +------------------------------------------------------------------------= + To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message