Differences between version 17 and predecessor to the previous major change of NTPServers.
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Newer page: | version 17 | Last edited on Friday, February 1, 2013 3:32:53 am | by AristotlePagaltzis | Revert |
Older page: | version 16 | Last edited on Friday, February 1, 2013 1:43:00 am | by SamBailey | Revert |
@@ -1,67 +1,38 @@
-!!! NTP Servers in New Zealand
+!!! [
NTP]
Servers
-There is a pool of servers at <tt>nz.pool.ntp.org</tt>, which provides [Round Robin DNS|RoundRobin] access to publicly accessible [NTP] servers that have agreed to be part of the pool.
+!! In NewZealand
-Many ISPs
have NTP servers for their customers:
+There is a pool of servers at <tt>nz.pool.ntp.org</tt>, which provides RoundRobin [DNS] access to publicly accessible [NTP] servers that have agreed to be part of the pool.
+
+
Many [ISP]s
have [
NTP]
servers for their customers:
* <tt>ntp.iprolink.co.nz</tt>
* <tt>ntp.iconz.co.nz</tt>
* <tt>tk1.ihug.co.nz to tk3.ihug.co.nz</tt>
* <tt>time.paradise.net.nz</tt>
+
+or you could try querying your [ISP]'s [DNS] servers with <tt>ntp</tt> or <tt>ntp1</tt>.
Some universities have publicly accessible servers:
* <tt>ntp.public.otago.ac.nz</tt> (Please notify before using)
* <tt>ntp.massey.ac.nz</tt>
-For a long time [Waikato University|
WaikatoUniversity]
had public NTP servers. They are still available but no longer publicly accessible.
-
-!! Stratum 1 Servers in New Zealand
-
-You shouldn't synchronise to a stratum one server for your small network -- if everyone did that then the server would need too much bandwidth. The difference in accuracy between synching to a stratum 1 server and a lower stratum server is negligible! [more|http://list.waikato.ac.nz/pipermail/nznog/2001-October/003705.html]
-
-! .nz Registry Services
-
-There are three stratum 1 NTP servers provided by .nz Registry Services (NZRS) for network operators based within New Zealand. [more|http://ntp.net.nz/]
-
-* <tt>s1.ntp.net.nz</tt> in Albany connected to [FX].
-* <tt>s2.ntp.net.nz</tt> in Auckland connected to [ICONZ] and [APE].
-* <tt>s3.ntp.net.nz</tt> in Wellington connected to [FX] and [WIX].
-
-All three are Symmetricom S300 NTP servers, each connected to a differential GPS antenna on the roof and each with a rubidium oscillator to provide a stable clock in the event of an issue with the GPS signal. [more|http://ntp.net.nz/architecture/]
-
-! The Measurement Standards Laboratory
-
-The standard for time in New Zealand is maintained by the [Measurement Standards Laboratory|http://msl.irl.cri.nz/], part of [Industrial Research Limited|http://irl.cri.nz/]. MSL runs several public NTP servers that are referenced to UTC(MSL).
-
-* <tt>msltime.irl.cri.nz</tt>
-* <tt>msltime1.irl.cri.nz</tt>
-* <tt>msltime2.irl.cri.nz</tt>
-
-They are FreeBSD-based servers that are directly connected to their master HP5071A caesium clock. [more|http://msl.irl.cri.nz/services/time-and-frequency/ntp-server-information]
-
-!! Stratum 1 Servers in other countries
-
-! United States
-
-The US National Institute of Standards and Technology (NIST) operates several publicly accessable stratum 1 time servers on the pacific coast of the US. These servers are referenced to UTC(NIST) using the NIST Automated Computer Time Service (ACTS), a modem-based service established in 1988. [more|http://tf.nist.gov/tf-cgi/servers.cgi]
-
-* <tt>nist1.symmetricom.com</tt> San Jose, California
-* <tt>nist1-sj.ustiming.org</tt> San Jose, California
-* <tt>nist1-la.ustiming.org</tt> Los Angeles, California
-* <tt>nist1.aol-ca.symmetricom.com</tt> Mountain View, California
+For a long time WaikatoUniversity had public [
NTP]
servers. They are still available but no longer publicly accessible.
-The US Naval Observatory (USNO) operates several stratum 1 time servers from it's Alternate Master Clock Facility (AMCF) at [Schriever Air Force Base|http://en.wikipedia.org/wiki/Schriever_Air_Force_Base], [near Colorado Springs|http://maps.google.com/maps?q=schriever+afb], on the same site as the GPS Master Control Station. These servers are referenced to UTC(USNO). [more|http://tycho.usno.navy.mil/clocks.html]
+!! In other countries
-*
<tt>tick
.usnogps
.navy.mil
</tt>
-* <tt>tock
.usnogps.navy.mil</tt>
+<tt>pool
.ntp
.org
</tt> has [NTP] server pools for many countries
.
-!
Australia
+* <tt>au.pool.ntp.org</tt>
Australia
+* <tt>us.pool.ntp.org</tt> United States
+* <tt>de.pool.ntp.org</tt> Germany
+* Etc. Try <tt>''cc''.pool.ntp.org</tt>, where ''cc'' is a country code.
-The Australian National Measurement Institute (NMI) maintains the Australian time standard, UTC(AUS) using caesium and hydrogen maser standards. NMI maintains a number
of NTP servers which are referenced to UTC(AUS). To use these servers, you need to register via email. [more
|http://www.measurement
.gov.au
/Services
/Pages
/TimeandFrequencyDisseminationService
.aspx
]
+[List
of public German
NTP servers | http://www.hullen
.de
/helmut
/filebox
/DCF77/ntpsrvr
.html
].
!! See also
* [NTPNotes]
* TimeSources
-* [Scientific study from 1999 on the topology of the country's main NTP servers | http://www.cosc.canterbury.ac.nz/research/reports/TechReps/1999/tr_9901.pdf ]
+* [Scientific study from 1999 on the topology of the country's main NTP servers | http://www.cosc.canterbury.ac.nz/research/reports/TechReps/1999/tr_9901.pdf ] (note that [GPS] is much more widely available now)