[AusNOG] NTP Best Current Practices Internet Draft

[Mark Andrews]

Lets take the improvements when we get them and encourage people to upgrade.
It tends to reduces the work load on everyone when that is done.

> On 4 Feb 2019, at 7:54 pm, Robert Hudson <hudrob at gmail.com> wrote:
> 
> I can configure my system with UTC, and then set a per user time offset?
> 
> On Mon, 4 Feb. 2019, 6:18 pm Paul Gear <ausnog at libertysys.com.au wrote:
> On 2/2/19 3:15 pm, Robert Hudson wrote:
> > I say this as a long-time (since NT3.51) Windows sysadmin...
> > 
> > On Sat, 2 Feb. 2019, 12:31 pm O'Connor, Daniel
> > <darius-3tTUuF3Go8e6c6uEtOJ/EA at public.gmane.org
> > <mailto:darius-3tTUuF3Go8emAE84gaIGEA at public.gmane.orgu> wrote:
> > 
> > 
> > 
> >     > On 2 Feb 2019, at 11:48, Mark Smith
> >     <markzzzsmith-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org
> >     <mailto:markzzzsmith at gmail.com>> wrote:
> >     > The problem that occurred with 0.au.pool.ntp.org
> >     <http://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..
> > 
> > 
> > The time service is the area where I felt Windows lagged significantly
> > behind Linux more than any other. Why Microsoft still haven't adopted
> > standardised tzdata and proper NTP is still, frankly, beyond me. The
> > issues the Windows time services still cause are crazy...
> 
> 
> I never thought I'd be the one doing this, but please, everyone - get
> more accurate information before you bag Microsoft's time services.
> They've made a lot of strides forward, and have offered a proper NTP
> implementation since Server 2016:
> 
> https://docs.microsoft.com/en-us/windows-server/networking/windows-time-service/accurate-time
> 
> Paul
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742              INTERNET: marka at isc.org