All,

Here's the link to Mura/Torres report (which I hadn't seen before):

http://www.ntpsurvey.arauc.br/

Thanks, Tim, for bringing it to our attention.

>From my own humble stratum 2 pool server, I collected ntp client IP
addresses for over a year just for kicks.  No stratum (or any other)
analysis.

The results:  Over 7 million clients over the course of the year on a
single server.

http://www.dayww.net/ntpstats/clients.html

As a byproduct, the new DNS approach is apparently quite effective.  I was
at 100Mbps at the switchover and the daily peaks were effectively
squashed.  When I bumped it to 1000Mbps, the peaks came back with a
vengeance!


...Dave



On Tue, March 11, 2008 7:05 pm, Tim Shoppa wrote:
> Are there any currently executing NTP surveys, like Guyton's (1994),
> Minar's (1999), Mura/Torres (2005)?
>
> My public NTP servers sometimes have not-so-public (but still accessible
> to the wide world) stratum 1's peering with them, and I'm honestly
> surprised that only once or twice a year does someone traipse the
> ntpq -c peers or ntpdc -c monlist references and end up querying
> the not-so-public ones.
>
> I've done some surveys of my own and counted 640000 mentioned machines,
> but I suspect I'm only scratching the surface because so few servers
> respond usefully to ntpq -c peers or ntpdc -c monlist
>
> Tim.
> _______________________________________________
> timekeepers mailing list
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>


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