Re: xntp, ntpdate, setting the local clock
On Mon, 08 Dec 1997 17:30:15 +1100, Hamish Moffatt wrote:
> On Sun, Dec 07, 1997 at 08:37:33PM +0000, David Stern wrote:
> >
> > I'm using xntpd (for no good reason), have setup my ntp servers in
> > /etc/ntp.conf, have ran ntpq to find that xntpd is working great.
> > However, the local clock isn't being set, according to reftime in ntpq
>
> > I see a note: "ntpdate will decline to set the date if an NTP server
> > daemon (e.g., xntpd) is running on the same host."
> > (/usr/doc/xntp3/html/ntpdate.html) That could be a problem.. :-)
> > Should I be using ntpd (vs. xntpd), or .. ??
>
> Well, do you need to run the daemon, which presumably allows others
> to set their clock from your host, or do you just want to set the
> date yourself, in which case I guess you don't need the daemon?
I looked into rerunning the configuration script that is executed at
install time, but couldn't find anything. Perhaps that's part of the
.deb (One day I'll get into dpkg). Anyway, I just reinstalled xntp3
and daemon mode seems to be the default. However, I selected that
ntpdate run when xntpd was started, and instantly my X-windows clock
jumped ahead by 8 hours, and ntpq shows localtime off only off by under
a minute, reftime shows an update, so my time is by default getting set
when xntpd starts. Yes! :-)
> I just use netdate (client), it works great. If you want to sync
> the clock at regular intervals (could be why you think you need
> the daemon?) use a cron script.
Subtle difference between netdate and ntpdate. I tried netdate and had
some problems due to inability to connect to all of the servers that
ntpdate connected to(probably a protocol thing, by why only netdate and
not ntpdate?), and the times were off by more than 5 seconds (I'm using
stratum 1, so this shouldn't happen; they're off by 0, 3, 24, 25, 39 s.
in ntpq). I do like the netdate man page though, it give good examples.
So, I can automate ntpdate now, and if I can work out protocols, I can
probably get netdate to work. Either way I can cron it or stick it in
my connect script.
Thanks.
David
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