[AusNOG] NTP Best Current Practices Internet Draft

[Rob Thomas]

I am perfectly happy to sell anyone who wants one a Rasperry Pi in a
big heavy metal box.  I'll stick 'SUPER ACCURATE NTP SERVER' on the
front, and you just need to plug it in. I think AUD$1000 ex GST sounds
acceptable.  Please form an orderly queue to the left.  For an EXTRA
$800, I'll stick a GPS Time source in there, and it can be a Stratum 1
time server, rather than Stratum 2.

(Yes, this is humour. If someone REALLY wants to do this, please
contact me off-list, and I'll happily step you through it - you're
looking at less than AUD$100 in hardware to create a Stratum 2 NTP
server)


On Sat, 2 Feb 2019 at 11:54, Mark Smith <markzzzsmith at gmail.com> wrote:
>
> On Sat, 2 Feb 2019 at 12:35, Michael Junek <michael at juneks.com.au> wrote:
> >
> > Thats correct. Windows only has a SNTP client implemented, and not an NTP client. As such, it can only query a single NTP server, and does not have the algorithms to determine the accuracy of the time sources.
> >
> >
>
> If that's the case, I'd buy/find a 3rd party NTP client for my Windows
> boxes. (Don't have any so don't have this problem.)
>
>
>
> >
> >
> > ________________________________________
> > From: AusNOG <ausnog-bounces at lists.ausnog.net> on behalf of O'Connor, Daniel <darius at dons.net.au>
> > Sent: Saturday, 2 February 2019 12:31
> > To: Mark Smith
> > Cc: <ausnog at lists.ausnog.net>
> > Subject: Re: [AusNOG] NTP Best Current Practices Internet Draft
> >
> > > On 2 Feb 2019, at 11:48, Mark Smith <markzzzsmith at gmail.com> wrote:
> > > The problem that occurred with 0.au.pool.ntp.org proving bad time
> > > wouldn't have had an effect if the Windows domain controller had at
> > > least 2 other NTP time sources.
> >
> > The behaviour of OPs system implies that a PDC does not use more than one clock source.
> >
> > If that is true (I have no idea, but googling suggests it may be so) then you are going to end up relying on a single time server. In that case you are probably better firing up a tiny Linux VM running only ntpd (or chrony etc etc) which is configured for multiple pool servers and then point your DCs at that.
> >
> > It does seem pretty ridiculous than Windows server can't behave more sensibly though..
> >
> > --
> > Daniel O'Connor
> > "The nice thing about standards is that there
> > are so many of them to choose from."
> >  -- Andrew Tanenbaum
> >
> >
> > _______________________________________________
> > AusNOG mailing list
> > AusNOG at lists.ausnog.net
> > http://lists.ausnog.net/mailman/listinfo/ausnog
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog