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Date:      Sun, 14 Oct 2012 21:06:35 -0500
From:      Adam Vande More <amvandemore@gmail.com>
To:        schultz@ime.usp.br
Cc:        Peter Vereshagin <peter@vereshagin.org>, freebsd-questions@freebsd.org
Subject:   Re: Sysctls and privacy
Message-ID:  <CA+tpaK3muydsiDfdFeQDFD8PiH+-zhverofWUNLXZHLKucs4Fw@mail.gmail.com>
In-Reply-To: <20121014223328.16140uoyo4x5dii0@webmail.ime.usp.br>
References:  <20121012095915.470864k9735iy883@webmail.ime.usp.br> <20121013101545.GA21274@external.screwed.box> <20121013120939.18067gfy2u4vdzjn@webmail.ime.usp.br> <20121014140148.GA5344@external.screwed.box> <20121014223328.16140uoyo4x5dii0@webmail.ime.usp.br>

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On Sun, Oct 14, 2012 at 8:33 PM, <schultz@ime.usp.br> wrote:

>
>> Here is the catch. I know I can read-only mount most static filesystems
> from a template. However, the mutable ones have to be copied.
>

Says who?  Is this your requirement?  Why?


> Because someone might know the program memory, cpu or network usage
> patterns
> and extrapolate from the data. Firefox is a good example because it
> eats up huge amounts of RAM and garbage collects it quite fast. So when
> that pattern shows up you know someone is probably using Firefox.
> This, of course, also applies to other programs.
>

If this is really a serious concern of yours, you have much bigger fish to
fry than sysctl(8).

-- 
Adam Vande More



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