Am not totally sure how our NTP setup works, but it is all in the WMF's puppet repository.  https://github.com/wikimedia/puppet/blob/production/modules/profile/manifests/ntp.pp looks like a good place to start. 

On Tue, Mar 16, 2021 at 6:04 AM Ho Chung <chungho4865@gmail.com> wrote:
Hello

Have anyone know the Varnish ntp server clock accuracy  can it be used as a forensic clock after evaluation?

Do you use some third-party unapproved NTP clocks for your time?

Thanks 👍
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