From owner-freebsd-security@FreeBSD.ORG  Sun May 13 13:31:08 2012
Return-Path: <owner-freebsd-security@FreeBSD.ORG>
Delivered-To: freebsd-security@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 22754106566C
	for <freebsd-security@freebsd.org>;
	Sun, 13 May 2012 13:31:08 +0000 (UTC)
	(envelope-from tam.sergio@gmail.com)
Received: from mail-ey0-f182.google.com (mail-ey0-f182.google.com
	[209.85.215.182])
	by mx1.freebsd.org (Postfix) with ESMTP id AB7808FC17
	for <freebsd-security@freebsd.org>;
	Sun, 13 May 2012 13:31:07 +0000 (UTC)
Received: by eabm6 with SMTP id m6so1491502eab.13
	for <freebsd-security@freebsd.org>;
	Sun, 13 May 2012 06:31:06 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type;
	bh=eFx7IhlFlHXibc7XpqNY47zfnyQM4kDM45QIx5yQm74=;
	b=cRb4YCNKiT6pOrCBHAFCmBvOEoK20wfEeunPadXbz69+zv3+uI2OdFLTo0jNF47nFo
	0BStc7xFz7/7IL7/Y/jyGWg92T0jEHh+LQUwhGdH8Cr5D1PJbAWMp8gOTY0cHpKrUc/R
	lM3wnyEbE6cF47L7qJCCflDDVl6c7Cbe+TvLCO7XFphVxGnxdIByfAD0l5ZfomxWvd1r
	wpd6UwUzAoe3uKZn9mzlj0+9mFqtvf4AyLvOFnHssP81VGCfLpbPgwby7p5No4WG3s/S
	6EQzQrTS++kCpn9RK/ufd8DwW4qqdd8mcsBpvU+AwypvZrcnTl+FXaUK+psCRCciLyeO
	XQzA==
MIME-Version: 1.0
Received: by 10.213.19.17 with SMTP id y17mr790117eba.104.1336915866502; Sun,
	13 May 2012 06:31:06 -0700 (PDT)
Received: by 10.14.224.201 with HTTP; Sun, 13 May 2012 06:31:06 -0700 (PDT)
In-Reply-To: <CAL5m1BsnURTXsZJEkF9sR-3wsVRHkOto-CuCSuJCgH2yivNGPg@mail.gmail.com>
References: <CAL5m1BsnURTXsZJEkF9sR-3wsVRHkOto-CuCSuJCgH2yivNGPg@mail.gmail.com>
Date: Sun, 13 May 2012 08:31:06 -0500
Message-ID: <CA+au=teBBt2TCzmStdSiWy4ox9gZYF8MdAX-=eAJ_vC_T9uWqg@mail.gmail.com>
From: Sergio Tam <tam.sergio@gmail.com>
To: freebsd-security@freebsd.org
Content-Type: text/plain; charset=ISO-8859-1
Cc: mahdieh salamat <mahdieh.salamat@gmail.com>
Subject: Re: Single user mode
X-BeenThere: freebsd-security@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Security issues \[members-only posting\]"
	<freebsd-security.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-security>, 
	<mailto:freebsd-security-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-security>
List-Post: <mailto:freebsd-security@freebsd.org>
List-Help: <mailto:freebsd-security-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-security>, 
	<mailto:freebsd-security-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 13 May 2012 13:31:08 -0000

2012/5/13 mahdieh salamat <mahdieh.salamat@gmail.com>:
> Hi everybody. I have a question about single user mode in FreeBSD. Security
> is so important for me. I want to know that if someone don't know my root's
> password can access to it? In other words in our FreeBSD we don't have
> FreeBSD boot loader menu, we delete it for our users becouse of security. I
> want to know is there any other way except boot loader menu for our user to
> access to our root's password?
> Thanks


http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/boot-init.html

13.6.2 Single-User Mode

If the system console is set to insecure in /etc/ttys, then the system
prompts for the root password before initiating single-user mode



Regards.