From owner-freebsd-security Mon Jul 8 7:26: 0 2002 Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 263EF37B400 for ; Mon, 8 Jul 2002 07:25:53 -0700 (PDT) Received: from amsfep12-int.chello.nl (amsfep12-int.chello.nl [213.46.243.17]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1E2EA43E42 for ; Mon, 8 Jul 2002 07:25:52 -0700 (PDT) (envelope-from mcrosland@chello.nl) Received: from [127.0.0.1] by amsfep12-int.chello.nl (InterMail vM.5.01.03.06 201-253-122-118-106-20010523) with SMTP id <20020708142551.MOXD28368.amsfep12-int.chello.nl@[127.0.0.1]> for ; Mon, 8 Jul 2002 16:25:51 +0200 From: To: freebsd-security@freebsd.org Subject: [Fwd: Fwd: Re: hiding OS name] Date: Mon, 8 Jul 2002 16:25:51 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Message-Id: <20020708142551.MOXD28368.amsfep12-int.chello.nl@[127.0.0.1]> Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org > > Van: Mike Crosland > Datum: 2002/07/08 ma PM 04:21:38 GMT+02:00 > Aan: mcrosland@chello.nl > Onderwerp: Fwd: Re: hiding OS name > > > > ---------- Forwarded Message ---------- > > Subject: Fwd: Re: hiding OS name > Date: Mon, 8 Jul 2002 16:13:04 +0200 > From: Mike Crosland > To: freebsd-security@freebsd.org > > ---------- Forwarded Message ---------- > > Subject: Fwd: Re: hiding OS name > Date: Mon, 8 Jul 2002 12:09:53 +0200 > From: Mike Crosland > To: security@freebsd.org > > ---------- Forwarded Message ---------- > > Subject: Re: hiding OS name > Date: Mon, 8 Jul 2002 11:18:17 +0200 > From: Mike Crosland > To: Nathan Kinkade > > On Monday 08 July 2002 06:29, Nathan Kinkade wrote: > > On Mon, 8 Jul 2002 09:32:09 +0700 > > > > "Asep Ruspeni" wrote: > > > I am newbie in FreeBSD OS, but i have lot of concerned in securing > > > system. > > > > > > I have questions like this : > > > > > > - how can i set-up FreeBSD, so when it being scanned, it's show no > > > operating system name + version. > > > - is there any articles i colud read about securing freeBSD such as > > > the question i ask above. > > > > > > thank you in advance. > > You could try re-compiling the kernel to drop packets with SYN+FIN, which > prevents fingertprinting the staqck, but LINT carries a warning about this > not being good for web servers. If you're not running a webserver though, the > option is > > options TCP_DROP_SYNFIN > > > Michael Crosland > > Systeem Beheerder > > --------------------------------------- > HBH Automatisering BV + > Koningslaan 30 + > 1075 AD Amsterdam + > --------------------------------------- > > ------------------------------------------------------- > > -- > Met vriendelijk groeten, > > > Michael Crosland > > Systeem Beheerder > > --------------------------------------- > HBH Automatisering BV + > Koningslaan 30 + > 1075 AD Amsterdam + > Tel: 020-6624145 Ext: 808 + > Fax: 020-6764478 > Mobiel 0647 166305 + > --------------------------------------- > > ------------------------------------------------------- > > -- > Met vriendelijk groeten, > > > Michael Crosland > > Systeem Beheerder > > --------------------------------------- > HBH Automatisering BV + > Koningslaan 30 + > 1075 AD Amsterdam + > Tel: 020-6624145 Ext: 808 + > Fax: 020-6764478 > Mobiel 0647 166305 + > --------------------------------------- > > ------------------------------------------------------- > > -- > Met vriendelijk groeten, > > > Michael Crosland > > Systeem Beheerder > > --------------------------------------- > HBH Automatisering BV + > Koningslaan 30 + > 1075 AD Amsterdam + > Tel: 020-6624145 Ext: 808 + > Fax: 020-6764478 > Mobiel 0647 166305 + > --------------------------------------- > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message