I was wondering if anybody has any suggestions for a low priced, off the
shelf, complete (includes any necessary receivers), standalone (as in you
just plug it in and connect ethernet), stratum 1 NTP server?
Please also mention where to buy it.
Mike.
+----------------- H U R R I C A N E - E L E C T R I C -----------------+
http://www.truetime.com/index.html
Not exactly "stand alone" because you have to place the antenna somwhere
where it can see the GPS satellites as is the case with any any Stratum 1
NTP device. Then you have to program the IP into it and plug the ethernet
into it. They are really simple to install and configure. They give you a
certain amount of Coax (you can order more if need be) and you put the
antenna on the roof and run it down to the receiver. Quite simple.
They have a couple different models to choose from.
-Mike
Mike Leber(mleber@he.net)@2002.08.26 23:52:08 +0000:
I was wondering if anybody has any suggestions for a low priced, off the
shelf, complete (includes any necessary receivers), standalone (as in you
just plug it in and connect ethernet), stratum 1 NTP server?
some years ago, i migrated all of my server infrastructure from NTP to
clockspeed and the taiclock protocol, which works a bit different to
NTP. every server keeps its own correction/drift values in a running
software PLL. my current update interval is to poll the main server(s)
every two weeks. after experiencing several problems with xntpd (like
folks sending random udp packets with spoofed ip addresses causing
several machines to drift up to two(!) hours (yes, the default
configurations are without any auth on most OS distributions), the
problem was solved by not depending on a steady feed of fresh clock
information. adjustment bases solely on a single correction value, which
runs in a tolerance window of about 25 to 30 attoseconds per week on
most intel based boards i got here.
http://cr.yp.to/clockspeed.html
i know that some folks will start to bash on dan, again, but his
approach to tackle the time synchronization problem appeared to solve
most/all of our operational problems of our time servers and clients. in
daily operations, clockspeed/taiclock clearly proved to be superior to
NTP, timed, et al. furthermore, the software is very simple to install
and maintain, with less security/stability risks due to less complexity
in code.
regards,
/k