On Oct 11, 2006, at 12:31 PM, Rob wrote:
I don't plan on allowing anyone to connect to my machine or use it as
a NTPD server. I see that OpenNTPD (OpenBSD's version) by default
doesn't listen on any IP/port and seems a little more secure.
OpenNTPD doesn't work-- ie, synchronize your clock-- unless you let
it talk to higher-stratum timeservers, or unless you provide a local
stratum-1 reference clock via GPS or the like, and provide the
"timedelta sensor" that it needs to actually figure out what to do,
versus the much more complete refclock support in the official NTPd
distribution.
Is this a good one to use over the included one in FreeBSD, or is
there something better?
No-- the stock ntpd which ships with FreeBSD works just fine.
The experience of people using or offering NTP services for the NTP
pool is that OpenNTPD experiences much wider variations from real
time (offsets in the hundreds of milliseconds rather than a few to
perhaps tens of milliseconds with ntpd). From http://
www.pool.ntp.org/join/configuration.html:
"Use the standard ntpd
We are all for software diversity, but a significant percentage of
the "it's not working" questions that come in are for software other
than ntpd. You can use the pool with any program speaking NTP, but
if you are going to join the pool we recommend you use ntpd."
--
-Chuck
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