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!!! [NTP] in NewZealand Have a look at http://www.cosc.canterbury.ac.nz/research/reports/TechReps/1999/tr_9901.pdf for a scientific study (from 1999) of the topology of the country's main [NTP] servers. (A bit dated as [GPS] is much more widely available now). There is a pool of NewZealand 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. !!! Stratum 1 [NTP] servers in NewZealand The Measurements Standards Laboratory at Industrial Reasearch Limited run a HP5071A caesium atomic clock which is part of the New Zealand time standard. This server is available at the address msltime.irl.cri.nz. [Read more details. | http://msl.irl.cri.nz/services/time/ntpServer.html] TelstraClear generously provides a stratum 1 [NTP] server for public use:'''' <tt>bigben.clix.net.nz</tt> However, you really shouldn't synchronise to a stratum one server for your small network -- if everyone did that then the server would probably need too much bandwidth. Please read http://list.waikato.ac.nz/pipermail/nznog/2001-October/003705.html. The difference in accuracy between synching to a stratum 1 server and a lower stratum server is negligible! For example, read http://www.cs.wisc.edu/~plonka/netgear-sntp/ -- in summary, ~NetGear hard-coded a public [NTP] server into some of their consumer products, which eventually ended up using hundreds of Mbits/second of the university's bandwidth, even after they were forced to shut down the server. !!! Other [NTP] Servers Some NewZealand [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>. Many of NewZealand's Universities also have public time servers such as: * <tt>ntp.public.otago.ac.nz</tt> (Please notify before using) * <tt>ntp.massey.ac.nz</tt> (Use the [DNS] name, as its [IP] changed recently and is now hosted by two machines) For a long time WaikatoUniversity had public [NTP] servers. They are still available but no longer publicly accessible. !!! [NZ] Pool Your best bet for a small home or office network is to set your server to <tt>nz.pool.ntp.org</tt> or <tt>pool.ntp.org</tt>, which will use RoundRobin [DNS] to choose one of the many servers now registered with that project. !!! German [NTP] servers Germany also has a pool.ntp.org entry: <tt>de.pool.ntp.org<tt> If that doesn't work for you, you could try some of the following servers: * <tt>time1.rrz.uni-koeln.de</tt> * <tt>time2.rrz.uni-koeln.de</tt> * <tt>time3.rrz.uni-koeln.de</tt> * <tt>ts-1.rz.rwth-aachen.de</tt> * <tt>ntp1.t-online.de</tt> * <tt>www1.rrz.uni-koeln.de</tt> * <tt>hora.cs.tu-berlin.de</tt> * <tt>rustime01.rus.uni-stuttgart.de</tt> * <tt>rzfs2.rz.tu-bs.de</tt> * <tt>ns1.hrz.uni-giessen.de</tt> * <tt>ntp2-rz.rrze.uni-erlangen.de</tt> * <tt>mailbox.tu-berlin.de</tt> * <tt>ntps1-0.cs.tu-berlin.de</tt> * <tt>ntp0.fau.de</tt> * <tt>ntp1.fau.de</tt> * <tt>ntp2.fau.de</tt> * <tt>ntp3.fau.de</tt> * <tt>ptbtime1.ptb.de</tt> * <tt>ptbtime2.ptb.de</tt> You might also want to look at a [very extensive list of public German NTP servers | http://www.hullen.de/helmut/filebox/DCF77/ntpsrvr.html]. !!! Other non-[NZ] servers As mentioned above, <tt>pool.ntp.org</tt> is a RoundRobin [DNS] for many [NTP] servers. Try <tt>''cc''.pool.ntp.org</tt>, where ''cc'' is a country code. * [A list of stratum 1 time servers | http://www.eecis.udel.edu/~mills/ntp/clock1a.html] * [A list of the stratum 2 time servers | http://www.eecis.udel.edu/~mills/ntp/clock2a.html] !!Install the NTP daemon (Debian/Ubuntu) *sudo aptitude install ntp Now use your favorite text editor to add the NTP servers you wish to synchronize your clock with: *echo "server nz.pool.ntp.org" >> /etc/ntp.conf If the time on the local server is very different from that of its primary time server your NTP daemon will eventually terminate, so we will first set the system time based on the time reported by the NTP server. Stop the NTP daemon: *sudo /etc/init.d/ntp stop Now run ntpdate *sudo ntpdate nz.pool.ntp.org Now you can start the daemon *sudo /etc/init.d/ntp start
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