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Date:      Tue, 1 Aug 2006 11:57:24 -0300 (ADT)
From:      User Freebsd <freebsd@hub.org>
To:        Nikolas Britton <nikolas.britton@gmail.com>
Cc:        Xiao-Yong Jin <xj2106@columbia.edu>, freebsd-questions@freebsd.org
Subject:   Re: Gotta start somewhere ... how many of us are really out there?
Message-ID:  <20060801115051.N27679@ganymede.hub.org>
In-Reply-To: <ef10de9a0608010121j154c7ael7ece0997a479572e@mail.gmail.com>
References:  <20060728164526.E27679@ganymede.hub.org> <87slklj9hu.fsf@photon.homelinux.org> <20060729021007.F27679@ganymede.hub.org> <44CD41EC.6030605@freebsd.org> <20060730233839.I27679@ganymede.hub.org> <44CDAA98.3030702@freebsd.org> <44CDE02F.4090604@dial.pipex.com> <44CE7DD0.9070902@childeric.freeserve.co.uk> <871ws1v261.fsf@photon.homelinux.org> <20060731220830.B27679@ganymede.hub.org> <ef10de9a0608010121j154c7ael7ece0997a479572e@mail.gmail.com>

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On Tue, 1 Aug 2006, Nikolas Britton wrote:

> Generating a unique anonymous key is easy, proving why we need it is not.

If you want to make accurate #s, you need to make sure that a host doesn't 
send in multiple reports, which means you need a unique key for each host 
... IP doesn't work, since NAT'd networks would all use the same IP ... 
even non-NAT'd networks would have the risk of being on dynamic IPs, so 
that again doesn't work ...

> (20 + 32) bytes * (10^7) = 495.910645 megabytes. The FreeBSD team would 
> need a 6.6Mbit/s uplink to handle peak load assuming 50% of the hosts 
> are set to UTC/GMT time and all trigger within 5 minutes of each 
> other.... I'm not going to pay for that connection.

First question is ... what is 10^7?  # of reporting hosts?  Where are you 
getting that # from?  Second, that is assuming *all* FreeBSD servers 
reported ...

But, I'll say this right now ... *if* something like this could be 
implemented to give us accurate #s, I *would* be willing to absorb the 
bandwidth you are talking about to see it happen ...

----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email . scrappy@hub.org                              MSN . scrappy@hub.org
Yahoo . yscrappy               Skype: hub.org        ICQ . 7615664



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