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