[ntp:questions] Speedstream 5100b time synchronization?
Brad Knowles
brad at stop.mail-abuse.org
Thu Jul 7 09:17:25 UTC 2005
At 11:08 PM -0700 2005-07-06, eponymousalias at yahoo.com wrote:
> I've got a Speedstream 5100b DSL modem provided by my ISP
> (a major telco). Looking at its internal settings (which I
> have no way to modify), I see it synchronizes its own internal
> notion of time with two restricted-access stratum-1 NTP servers.
Just two?
> Isn't this a first-class bad idea, considering the load this
> would impose as the telco tries to sign up millions of customers?
If it's using just two, then yes -- that's the worst possible
configuration for NTP. See
<http://ntp.isc.org/bin/view/Support/SelectingOffsiteNTPServers#Section_5.3.3.>.
Otherwise, if the provider or the hardware manufacturer has not
negotiated access to those servers, then that would be a world-class
"bad idea". See <http://www.cs.wisc.edu/~plonka/netgear-sntp/> for
one such example of this kind of stupidity.
--
Brad Knowles, <brad at stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin (1706-1790), reply of the Pennsylvania
Assembly to the Governor, November 11, 1755
SAGE member since 1995. See <http://www.sage.org/> for more info.
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