The NTP driftfile
The driftfile entry in /etc/ntp.conf
tells ntpd the name of the file
where it can find and store the clock drift, also known as
frequency error, of the system clock.
If the file exists at startup, it is read and the value is used to
initialize ntpd's internal value of the frequency error.
The file is updated once every hour by ntpd.
It usually takes a day or so after the daemon is started to compute
a good estimate of the clock drift.
Once the initial value is computed, it will change only by relatively
small amounts during the course of continued operation.
Because ntpd needs a good estimate to synchronize
closely to its server,
there should always be a driftfile entry in
NTP association modes
The NTP clock.txt file
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003