Re: NTP.conf pool vs server
- Date: Wed, 07 Jun 2017 12:25:34 -0400
- From: Jim Ohlstein <jim@xxxxxxxxxxxxxxxxxxx>
- Subject: Re: NTP.conf pool vs server
On Wed, 2017-06-07 at 10:35 -0400, Gene Heskett wrote:
> On Wednesday 07 June 2017 08:56:59 ray wrote:
> > I would like to know the correct syntax for entering a server entry
> > for stretch.
> > All the documentation I find says to list the ntp servers in the
> > as: server 0.XX.pool.ntp.org
> > server 1.XX.pool.ntp.org
> > An example source from 2017 is https://wiki.debian.org/DateTime
> > When I open /etc/ntp.conf on my new stretch installation, I find
> > format: pool 0.debian.pool.ntp.org iburst
> > pool 1.debian.pool.ntp.org iburst
> > The latest Debian doc says to start the line with 'server'.
> > The latest Debian implementation starts the line with 'pool'.
> > Are these interchangeable?
> > Additionally, there is a parameter 'iburst' which I did not find in
> > the Debian docs but found at http://doc.ntp.org/4.1.1/confopt.htm
> > Thanks,
> > Ray
> Begin rant:
> From someone who is currently battling a fresh jessie install that
> even come with ntpdate installed, and which using the above format
> in /etc/ntp.conf is still about 12 hours off on an rpi-3.
> Installing ntpdate and attempting to start it gets me a no servers
> message, yet they are defined as discussed above, and the network is
> fully accessible to all other forms of communication.
$ sudo ntpdate -s pool.ntp.org
> That doc on www.ntp.org is nice, but worthless to someone who just
> it to work. I have quite a zoo of machines here, and I see little
> advantage to each one banging on a network server, when it needs an
> update. But does it give even a hint of how to make this machine,
> heaven forbid, my router, which keeps time via ntp, and which I
> has the time broadcast enabled, (its dd-wrt in a buffalo box) into a
> server that the rest of my machines can listen to to get the correct
> time. If I could achieve that, it would reduce the loading on the
> servers at debian or pool.ntp.org by a factor of 5 or 6 just from my
> home network.
> But a manpage that actually tells us how to do that must be sick
> because its not been written yet. Man page writers please get real,
> tell us how to do something like getting our home networks all
> synchronized to our routers which can then broadcast it to the rest
> our network.
> Such a scheme can easily keep us on time with any errors within a
> milliseconds, more than adequate enough for the girls I go with.
> reducing the load on the servers by at least 80%.
> So how about a manpage that tells us how to do that? If its not
> according to some rfc that is.
> Rant off.
> Thanks for reading.
> Cheers, Gene Heskett
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
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