Date: Thu, 20 Jan 2000 00:25:30 +0100 (CET) From: Oliver Fromme <olli@dorifer.heim3.tu-clausthal.de> To: freebsd-questions@FreeBSD.ORG Subject: Re: time sync problem--ntpdate AND xntpd?? Message-ID: <200001192325.AAA33587@dorifer.heim3.tu-clausthal.de> In-Reply-To: <865gj3$g8o$1@atlantis.rz.tu-clausthal.de>
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Walter Brameld <brameld@twave.net> wrote in list.freebsd-questions:
> How does one go about finding reliable time sources?
Try asking your ISP. Many have stratum-1 NTP servers.
Or try looking for one at a university or other organization
which is not too many network hops away, and which provides
such service to the public.
You can also build your own stratum-1 NTP server, just buy
an appropriate reference clock which is supported by xntpd,
e.g. a GPS or DCF receiver. With a good GPS receiver, you
can achieve accuracy in the range of µs, but those are a bit
expensive. DCF77 receivers, which are quite popular in
Europe, are much cheaper but less accurate (in the ms range),
but it should still be enough for private use.
Regards
Oliver
--
Oliver Fromme, Leibnizstr. 18/61, 38678 Clausthal, Germany
(Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de)
"In jedem Stück Kohle wartet ein Diamant auf seine Geburt"
(Terry Pratchett)
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