To make the PTP-adjusted system time on an NTP server available to NTP clients, include
the following entries in /etc/ntp.conf on the NTP server to define the
local system clock as the time reference:
server 127.127.1.0 fudge 127.127.1.0 stratum 0
Note
Do not configure any additional server lines in the file.
For more information, see Section 14.1.1, “Configuring the ntpd Service”.