nanog mailing list archives

Re: NTP question


From: Chris Adams <cma () cmadams net>
Date: Thu, 2 May 2019 10:29:56 -0500

Once upon a time, William Herrin <bill () herrin us> said:
The one time I relied on the pool I lost sync a year later when all three
servers the configuration picked withdrew time services and the
still-running ntp client didn't return to the names to find new ones.
Wonderful if that's fixed now but the pool folks argued just as strongly
for using it back then.

Current versions of both ntpd and chrony support a "pool" config option
as an alternative to the "server" option, and I believe both will
monitor the reachability and quality of the sources and periodically
refresh from DNS.

-- 
Chris Adams <cma () cmadams net>


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