<div dir="auto">For all the windows environments I've run I've always used a 2 x raspberry pi for a time source because of this very problem. Adding GPS time is also very cheap.<br><br><div data-smartmail="gmail_signature">Regards,<br><br>Peter Tiggerdine<br><br> </div></div><br><div class="gmail_quote"><div dir="ltr">On Sat, Feb 2, 2019, 12:21 Michael Junek <<a href="mailto:michael@juneks.com.au">michael@juneks.com.au</a> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Yes and no -- relative time is critical within the Windows network, such as synchronisation between Servers, Clients and Domain Controllers, which is why everything Syncs back to the DCs.<br>
<br>
The absolute time (syncrhonising to an outside souce) has no bearing on its operation. (Excluding things such as domain trusts and the like)<br>
<br>
So in the case that the OP had, the whole network goes half hour out of sync, but relatively speaking, all the clocks on the network are within a few seconds of each other, and Kerberos etc doesn't die.<br>
<br>
<br>
<br>
________________________________________<br>
From: O'Connor, Daniel <<a href="mailto:darius@dons.net.au" target="_blank" rel="noreferrer">darius@dons.net.au</a>><br>
Sent: Saturday, 2 February 2019 12:37<br>
To: Michael Junek<br>
Cc: Mark Smith; <<a href="mailto:ausnog@lists.ausnog.net" target="_blank" rel="noreferrer">ausnog@lists.ausnog.net</a>><br>
Subject: Re: [AusNOG] NTP Best Current Practices Internet Draft<br>
<br>
> On 2 Feb 2019, at 12:05, Michael Junek <<a href="mailto:michael@juneks.com.au" target="_blank" rel="noreferrer">michael@juneks.com.au</a>> wrote:<br>
> 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.<br>
<br>
That is pretty insane given how critical time is to the correct functioning of an AD network..<br>
<br>
Is there an MS solution apart from #yolo?<br>
<br>
--<br>
Daniel O'Connor<br>
"The nice thing about standards is that there<br>
are so many of them to choose from."<br>
-- Andrew Tanenbaum<br>
<br>
<br>
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</blockquote></div>