restrict 127.0.0.1
restrict ::1

restrict 10.24.0.0 mask 255.255.255.0 notrust

server 127.127.1.0
fudge 127.127.1.0 stratum 10

ubuntu@ntp:~$ ps auxww | grep '[n]tp'
ntp      13517  0.0  0.8 103212  4136 ?        Ssl  Jun02   0:00 /usr/sbin/ntpd -p /var/run/ntpd.pid -g -u 111:115