Date: Thu, 6 Jan 2000 07:48:34 +0100 From: Sascha Schumann <sascha@schumann.cx> To: Alexander Langer <alex@big.endian.de> Cc: Peter Spekreijse <peter@echelon.nl>, freebsd-isdn@FreeBSD.ORG Subject: Re: feauture request Message-ID: <20000106074834.A23681@schumann.cx> In-Reply-To: <19991231112004.A15193@cichlids.cichlids.com>; from alex@big.endian.de on Fri, Dec 31, 1999 at 11:20:04AM %2B0100 References: <m123yaA-000PqxC@Charlie.Echelon.nl> <19991231112004.A15193@cichlids.cichlids.com>
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On Fri, Dec 31, 1999 at 11:20:04AM +0100, Alexander Langer wrote:
> Thus spake Peter Spekreijse (peter@echelon.nl):
>
> > I'm running ntp at home and like to sync my clock with the one at work.
> > I don't want my system to dial for this kind of traffic. ntp can sync
> > when the line is open for "interesting" traffic.
>
> Use a connectiop-up script that removes an ipfw filter for the
> ntp-port on dialup and a connection-down script that adds the
> packet-filter for it, when the connection will be terminated.
> Or do only sync it once, on dialup.
>
> Ok. The above is not possible, if the ntp updates in shorter periods
> than the idle-time for the i4b-thing is set.
Well, simply set the minpoll and maxpoll parameters in your
ntp.conf. I'm using that here at home and it works
flawlessly. Example:
server ntp2.fau.de minpoll 14 maxpoll 16
Poll the server at least all 2^14 seconds, and at maximum all
2^16 seconds.
Additionally, buying one of the DCF77 receivers from Conrad
(25 Euro) might be an option in Germany. I'm currently
writing a FreeBSD driver for this beast which will also work
together with ntpd.
--
Regards,
Sascha Schumann
Consultant
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