server 1.2.3.4 server 4.3.2.1 keyfile /etc/chrony/chrony.keys commandkey 1 rtcfile /var/lib/chrony/chrony.rtc driftfile /var/lib/chrony/chrony.drift dumpdir /var/lib/chrony logdir /var/log/chrony log tracking dumponexit maxupdateskew 100.0 rtconutc allow