From owner-freebsd-security Mon Jul 8 1: 3: 3 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 946AF37B400 for ; Mon, 8 Jul 2002 01:03:00 -0700 (PDT) Received: from spork.pantherdragon.org (spork.pantherdragon.org [206.29.168.146]) by mx1.FreeBSD.org (Postfix) with ESMTP id 15E4743E31 for ; Mon, 8 Jul 2002 01:02:59 -0700 (PDT) (envelope-from dmp@pantherdragon.org) Received: from spark.techno.pagans (spark.techno.pagans [4.61.202.145]) by spork.pantherdragon.org (Postfix) with ESMTP id 0DEDD471DA; Mon, 8 Jul 2002 01:02:48 -0700 (PDT) Received: from pantherdragon.org (speck.techno.pagans [172.21.42.2]) by spark.techno.pagans (Postfix) with ESMTP id 111FCFDA0; Mon, 8 Jul 2002 01:02:43 -0700 (PDT) Message-ID: <3D294723.7022CD07@pantherdragon.org> Date: Mon, 08 Jul 2002 01:02:43 -0700 From: Darren Pilgrim X-Mailer: Mozilla 4.76 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Asep Ruspeni Cc: freebsd-security@FreeBSD.ORG Subject: Re: hiding OS name References: <006601c22627$a9199000$21020a0a@mti.itb.ac.id> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit 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 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. Hiding your OS name and version will do nothing to increase security, because the majority of people who scan for vulnerable hosts just do bulk scanning, trying their trick on everything they find. They know (or just don't care) that you can't reliably determine the OS without shell access and even then you can be tricked. That said, what you're looking to do is change the banner on the daemons you're running. How you do this is specific to each daemon. As usual, RTWP, JTML, RTFM, RTSL, etc. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message