20 Nov
2012
20 Nov
'12
6:22 p.m.
On Tue, Nov 20, 2012 at 04:53:39PM -0500, Jay Ashworth wrote:
For myself, I usually pick the first three in us.pool.ntp.org, tick and tock, time.nist.gov, and a couple of regionally appropriate large universities.
I'd advise going through the RR for a while, and pick servers close to you. ntpd won't select a server that's more than 128ms away. It also degrades accuracy. Select for minimum latency, as well as a diverse set of sources. [Watch their refid over time, and make sure they aren't slaving to the same set of servers, as well as others you may be using.] It requires a bit of effort, but over time you get an idea what public time servers are close to each of your locations, and diverse from each other. --msa