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Date: Thu, 30 Oct 1997 20:51:05 -0600 (CST)
From: Jay Nelson <jdn@qiv.com>
To: dkelly@HiWAAY.net
cc: questions@FreeBSD.ORG
Subject: Re: How do I synchronize FreeBSD time to a Solaris 2.5.1 machine ? 
In-Reply-To: <199710310050.SAA29361@nospam.hiwaay.net>
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I'm syncing one FreeBSD box to a stratum 1 time server over the net
(utexas) and 3 othe boxes to my server using xntpd. The AIX boxes
don't know anything about NTP so I'm also using timed on my stratum 2
server with the -F option so it trusts only itself. The AIX boxes are
running timed against it. It works well. Net traffic is minimal.

The sources are available at ftp.eecis.udel.edu or ftp.cs.umn.edu.
There are some binaries -- can't remember whether Solaris is there or
not. 

xntpd, I guess, will average like timed if the only entries in
/etc/ntp.conf are peer addresses, but it is intended to sync with a
fixed source (radio/NIST/Loran, etc.) and distribute accurate time to
its peers. Set up one box to sync with the highest stratum server that
is near you, and set up the other boxes to sync off your server.

Check the web pages I mentioned earlier. Public time servers are
listed there.

BTW, both the ftp sites I mentioned also have source for nbstime and
others that use modems to dial NIST for isolated nets. If your are
isolated, this may be a possibility -- although not without some pain.

-- Jay

On Thu, 30 Oct 1997 dkelly@HiWAAY.net wrote:

    > > You can use xntpd to sync to Stratum[12] timeservers and/or Solaris if
    > > it supports NTP See: http://www.eecis.udel.edu/~ntp -- otherwise, use
    > > timed. Both are a part of FreeBSD.
    > 
    > Was looking at this myself this week. Heck, I'd almost be happy if I 
    > could sync the Sun's as they don't have timed. SGI does ship with timed.
    > 
    > Within xntpd, can one create an averaging sync between systems similar 
    > to what timed does? When dealing with standalone nets timed's a fairly 
    > good solution when one can't convince the boss to buy a GPS as a time 
    > source.
    > 
    > --
    > David Kelly N4HHE, dkelly@hiwaay.net
    > =====================================================================
    > The human mind ordinarily operates at only ten percent of its
    > capacity -- the rest is overhead for the operating system.
    > 
    >