# $OpenBSD: ntpd.conf,v 1.5 2019/11/11 16:44:37 deraadt Exp $ # sample ntpd configuration file, see ntpd.conf(5) # Addresses to listen on (ntpd does not listen by default) #listen on * # sync to a single server #server ntp.example.org # use a random selection of NTP Pool Time Servers # see http://support.ntp.org/bin/view/Servers/NTPPoolServers servers pool.ntp.org # time server with excellent global adjacency server time.cloudflare.com # use a specific local timedelta sensor (radio clock, etc) sensor nmea0 trusted # use all detected timedelta sensors #sensor * # get the time constraint from a well-known HTTPS site constraint from "9.9.9.9" # quad9 v4 without DNS constraint from "2620:fe::fe" # quad9 v6 without DNS constraints from "www.google.com" # intentionally not 8.8.8.8