# Sample /etc/ntp.conf:  Configuration file for ntpd.
#
# Undisciplined Local Clock. This is a fake driver intended for backup
# and when no outside source of synchronized time is available. The
# default stratum is usually 3, but in this case we elect to use stratum
# 0. Since the server line does not have the prefer keyword, this driver
# is never used for synchronization, unless no other other
# synchronization source is available. In case the local host is
# controlled by some external source, such as an external oscillator or
# another protocol, the prefer keyword would cause the local host to
# disregard all other synchronization sources, unless the kernel
# modifications are in use and declare an unsynchronized condition.
#
server time.berkeley.netdot.net
server ntp1.sf-bay.org
server clock.sjc.he.net
server us.pool.ntp.org
restrict time.berkeley.netdot.net mask 255.255.255.255 nomodify notrap noquery
restrict ntp1.sf-bay.org mask 255.255.255.255 nomodify notrap noquery
restrict clock.sjc.he.net mask 255.255.255.255 nomodify notrap noquery
restrict us.pool.ntp.org mask 255.255.255.255 nomodify notrap noquery

server	127.127.1.0	# local clock
fudge	127.127.1.0 stratum 10	

#
# Drift file.  Put this in a directory which the daemon can write to.
# No symbolic links allowed, either, since the daemon updates the file
# by creating a temporary in the same directory and then rename()'ing
# it to the file.
#
driftfile /etc/ntp/drift
#multicastclient			# listen on default 224.0.1.1
#broadcastdelay	0.008

#
# Keys file.  If you want to diddle your server at run time, make a
# keys file (mode 600 for sure) and define the key number to be
# used for making requests.
# PLEASE DO NOT USE THE DEFAULT VALUES HERE. Pick your own, or remote
# systems might be able to reset your clock at will.
#
#keys		/etc/ntp/keys
#trustedkey	65535
#requestkey	65535
#controlkey	65535

# Don't serve time or stats or trust anyone else by default (more secure)
restrict default noquery notrust nomodify
# Trust ourselves.  :-)
restrict 127.0.0.1
restrict 192.168.0.0 mask 255.255.255.0 nomodify notrap