AWS ntpd vs chrony

Tue Dec 12 11:42:10 UTC 2017

I see from Colin’s commit https://lists.freebsd.org/pipermail/svn-src-head/2017-December/106978.html that AWS FreeBSD AMIs will be configured to use the new API to NTP via 169.254.169.123 host/interface. AWS are baking this into AML using chronyd rather than ntpd. I realise that ntpd comes with FreeBSD, and I was wondering if that was the reason it has been used in the above commit in preference to chrony. I have always relied on ntpd, and its predecessors, and I am new to chronyd, so I also wonder if there are advantages to using chrony in the AWS environment (web heads and application servers mainly).

Many thanks,
Rafal
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Rafal Lukawiecki