From owner-freebsd-questions Wed Jan 19 15:25:34 2000 Delivered-To: freebsd-questions@freebsd.org Received: from dorifer.heim3.tu-clausthal.de (dorifer.heim3.tu-clausthal.de [139.174.243.252]) by hub.freebsd.org (Postfix) with ESMTP id C2F2F1530B for ; Wed, 19 Jan 2000 15:25:31 -0800 (PST) (envelope-from olli@dorifer.heim3.tu-clausthal.de) Received: (from olli@localhost) by dorifer.heim3.tu-clausthal.de (8.9.3/8.9.3) id AAA33587; Thu, 20 Jan 2000 00:25:30 +0100 (CET) (envelope-from olli) Date: Thu, 20 Jan 2000 00:25:30 +0100 (CET) Message-Id: <200001192325.AAA33587@dorifer.heim3.tu-clausthal.de> From: Oliver Fromme To: freebsd-questions@FreeBSD.ORG Reply-To: freebsd-questions@FreeBSD.ORG Subject: Re: time sync problem--ntpdate AND xntpd?? X-Newsgroups: list.freebsd-questions In-Reply-To: <865gj3$g8o$1@atlantis.rz.tu-clausthal.de> User-Agent: tin/1.4.1-19991201 ("Polish") (UNIX) (FreeBSD/3.4-19991219-STABLE (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Walter Brameld 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) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message