[LINK] RFI: Clock Synchronisation in Hosts

Kim Holburn kim at holburn.net
Wed Nov 12 14:13:07 AEDT 2014

I'd go with that.  At least two.  On my Mac, not 10.4 I added several like this in the Date & Time control.  Use commas to separate:

au.pool.ntp.org, time.australia.apple.com, time.apple.com, time.asia.apple.com

You could also put:

0.au.pool.ntp.org, 1.au.pool.ntp.org, 2.au.pool.ntp.org, 3.au.pool.ntp.org, 4.au.pool.ntp.org


On 2014/Nov/12, at 1:01 PM, Avi Miller wrote:

> FYI,
>> On 12 Nov 2014, at 12:55 pm, gr0ve <gr0ve at exemail.com.au> wrote:
>> In my home network, I tend to run my own local NTP
>> server for this function, which itself sources the time from one
>> of the available Australian NTP servers. 
> Syncing to just one upstream NTP server is not sufficient (it's a SPOF):
> http://support.ntp.org/bin/view/Support/SelectingOffsiteNTPServers#Section_5.3.3.
> We're now configuring our servers with 5 sources (which are internal) and each of those 5 sources sync with 5 different upstream sources.
> Cheers,
> Avi
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> Link at mailman.anu.edu.au
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Kim Holburn
IT Network & Security Consultant
T: +61 2 61402408  M: +61 404072753
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