Re: [SLUG] Local Timeserver

From: Paul M Foster (paulf@quillandmouse.com)
Date: Fri Nov 21 2003 - 14:40:18 EST


On Thu, Nov 20, 2003 at 11:04:49PM -0500, Kwan Lowe wrote:

> > At work, when I issue the same command from a client to the LAN's
> > timeserver, I get a message to the effect that there is no legitimate
> > timeserver there. Oddly enough, I get the whole dialog back and forth
> > that you'd normally see from issuing an ntpdate -qd command, but it
> > still says the server isn't legitimate. I checked that the firewall on
> > the timeserver is letting things through (it is), and the OUTPUT chain
> > of iptables just lets things through. Even without the -q qualifier, my
> > client machine will not recognize the local timeserver, and the ntp.conf
> > file is virtually identical with the one on the website (except for
> > local IPs, netmasks and internet timeservers). And yes, the ntp daemon
> > is running and has been restarted several times.
> >
> > Anyone have any ideas why the local machine won't recognize the local
> > timeserver at work, but will at home?
>
> How about the firewall on the client machine? It will also need the ntp
> ports opened. Some distros will punch a hole explicitly, some won't. Can
> you try temporarily dropping the local firewall completely just to test?
>

None such on the client. No need. When you run ntpdate -d, you can see
what appears to be a dialog that happens between the server and client,
and at the end is the time difference between the two machines (implying
two-way communications). And yet the client says there is no
authoritative server on the server end.

Paul
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