On Tue, 1 Aug 2006, Nikolas Britton wrote:
On 7/31/06, User Freebsd <[EMAIL PROTECTED]> wrote:
On Mon, 31 Jul 2006, Xiao-Yong Jin wrote:
> Chris Whitehouse <[EMAIL PROTECTED]> writes:
>
>> Alex Zbyslaw wrote:
>>> Counting portsnap and cvsup accesses is non-intrusive - i.e. nothing
>>> sent from local host - will count systems from any version of
>>> FreeBSD, but will never count everything because sites with multiple
>>> hosts may easily have local propagation mechanisms. But you will
>>> get an order of magnitude. However, how do you deal with systems
>>> with variable IPs? I don't know enough about the internals of
>>> either portsnap or cvsup to know if there is some kind of unique id
>>> associated with hosts. If not, then you'd wildly over count for
>>> many home-based, variable IP systems.
>>
>> Maybe not so many, my non-static ip hasn't changed since I signed up 3
>> years ago despite turning off the modem for the odd day or
>> two. Another network I look after also hasn't changed in a year.
>>
> But one can't rely on that. You'll definitely see more than one ip
> associated with my laptop, if I move it around.
>
> A more reliable way that I can think of is generating a unique ID
> number when a system finishes installation or upon the first boot.
> However, it may involve some additional privacy problem. What do you
> think?
How does Solaris generate its 'hostid'? Is it a hardware/sparc thing, or
software?
Generating a unique anonymous key is easy, proving why we need it is not.
Ok, here it is, " ifconfig | sha256 | md5 ". 16^32 unique anonymous
keys. Every host needs to have a NIC to send results so all ifconfig
outputs will be different. Now... What does this solve and why do we
need to add 32 extra bytes?
'k, so we'd be looking at something like:
#!/bin/sh
ID=`ifconfig | sha256 | md5`
SYS=`uname -mr | sed 's/\ /+/g'`
fetch http://www.hub.org/freebsd_stats.php?HOSTID=$ID\&SYSTEM=$SYS
URL would be different, mind you, just using that to test / example ...
Actually, using ifconfig wouldn't work ... it would give unique, but as
soon as you add another IP (ie. alias), the ID would change ... you'd need
to do something like:
ifconfig | grep ether | sha256 | md5
since the 'ether' would never change ...
----
Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
Email . [EMAIL PROTECTED] MSN . [EMAIL PROTECTED]
Yahoo . yscrappy Skype: hub.org ICQ . 7615664
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