[ntp:questions] Meinberg NTP Software--Time Accuracy
notvalid2 at sbcglobal.net
Tue Jun 23 04:29:37 UTC 2009
E-Mail Sent to this address will be added to the BlackLists wrote:
> W. eWatson wrote:
>> # Use specific NTP servers
>> server tick.usno.nav.mil iburst
>> I would guess that possible server locations can be found
>> in a list like <http://support.microsoft.com/kb/262680>,
> You might be better off using <http://www.pool.ntp.org/en/use.html>
> server 0.us.pool.ntp.org preempt iburst
> server 1.us.pool.ntp.org preempt iburst
> server 2.us.pool.ntp.org preempt iburst
> server 3.us.pool.ntp.org preempt iburst
> If you have at least at least ntp-dev-4.2.5p86
> e.g. Message-ID: <0fd7b5c0-3f34-4dc7-8d2c-fce10cf4a430 at h28g2000yqd.googlegroups.com>
> you can use the pool commands. e.g.
> pool 0.us.pool.ntp.org preempt iburst
> pool 1.us.pool.ntp.org preempt iburst
> pool 2.us.pool.ntp.org preempt iburst
> pool 3.us.pool.ntp.org preempt iburst
>> which shows NIST servers, and Level One Servers.
>> The site refers to other lists, one from the Naval Obs.
>> I would think I need to choose several either around the
>> west coast or around North America to add to the config
>> file above.
>> Do I need to include iburst or some other parameter?
> Some of those are only supposed to be used with permission,
> by Strat 1 or 2 servers.
> e.g. <http://tycho.usno.navy.mil/ntp.html>
> All of the following stratum 1 NTP servers are open to
> stratum 2 servers within the same time zone and to others
> by arrangement.
> Individual users should consult the public list of stratum
> 2 servers.
> # tick.usno.navy.mil
> Location: Time Service Dept., U.S. Naval Observatory,
> Washington, DC
> Synchronization: NTP V4 primary (USNO Master Clock H-masers)
> Access Policy: open access for MIL, GOV, and other stratum
> 2 servers. Choose only one of tick/tock/ntp2.usno.navy.mil.
I set drift.conf as above for Win2000.
server 0.us.pool.ntp.org preempt iburst
but do not believe the PC clock is in synch with accurate time. After 30-60
seconds they looked 3 sec apart.
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
Web Page: <www.speckledwithstars.net/>
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