[ntp:questions] How often does ntpd refresh its DNS lookup?

John Thurston john.thurston at alaska.gov
Mon Jul 29 22:40:09 UTC 2019

For server-entries in ntp.conf, how does ntpd (4.2.8p13) time refreshing 
of hostnames?

Does it use the TTL value received with the resolved address (maybe down 
to some compiled-minimum)? Does it refresh at some configurable interval?

I suppose it may not refresh at all, but I interpret the changelog to 
indicate this was incorporated in 4.2.7p19

    Do things because you should, not just because you can.

John Thurston    907-465-8591
John.Thurston at alaska.gov
Department of Administration
State of Alaska

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