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Date:      Tue, 3 Mar 2015 06:02:13 -0800
From:      Mehmet Erol Sanliturk <m.e.sanliturk@gmail.com>
To:        Polytropon <freebsd@edvax.de>
Cc:        fluxwatcher@gmail.com, Arthur Chance <freebsd@qeng-ho.org>, FreeBSD Questions Mailing List <freebsd-questions@freebsd.org>
Subject:   Re: Check root password changes done via single user mode
Message-ID:  <CAOgwaMvytBWdoprPNSuqKMnuX-w7-L_u1Wvg=kTH7nEDCjTjvw@mail.gmail.com>
In-Reply-To: <20150303141633.c38bdc7b.freebsd@edvax.de>
References:  <54F56A83.3000404@gmail.com> <CA%2ByaQw_3JJ2tJm32or-UmSpfMFo_jCn_JD1xFw=1E9i9K2reDg@mail.gmail.com> <54F57CD9.2000707@gmail.com> <54F5AF25.7000303@qeng-ho.org> <20150303141633.c38bdc7b.freebsd@edvax.de>

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On Tue, Mar 3, 2015 at 5:16 AM, Polytropon <freebsd@edvax.de> wrote:

> On Tue, 03 Mar 2015 12:55:01 +0000, Arthur Chance wrote:
> > As Bruce Schneier says, there's no such thing as perfect security, it
> > all depends on what costs (in money, time, or effort) attacker and
> > defender are prepared to pay.
>
> Also consider non-OS security in this context: A CCTV camera
> monitoring the console, or a hardware keylogger that can be
> examined for SUM logins and "passwd" command calls. This is
> relatively easy with physical servers, but those which are
> being accessed via network (and with some management solution
> that let's you, for example, access the serial console via
> IP) could benefit from a mechanism examining the network
> traffic; but as soon as you have end-to-end encryption in
> such a setup, it won't work... except it's weak crypto and
> you have the sufficient means...
>
> FreeBSD can only offer a specific subset of solutions "out
> of the box", and a versatile attacker will always find a way
> to avoid those obstacles.
>
>
> --
> Polytropon
> Magdeburg, Germany
> Happy FreeBSD user since 4.0
> Andra moi ennepe, Mousa, ...
> _______________________________________________
>
>
If any one is in front of the console , he/she may use a boot CD/DVD/USB
stick to boot a copy of the operating system , and do whatever wants to do .

Thank you very much .

Mehmet Erol Sanliturk



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