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# 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 127.127.1.0 # local clock
fudge 127.127.1.0 stratum 10
#
# NTP server (list one or more) to synchronize with:
#server 0.pool.ntp.org iburst
#server 1.pool.ntp.org iburst
#server 2.pool.ntp.org iburst
#server 3.pool.ntp.org iburst
#
# 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
#
# Uncomment to use a multicast NTP server on the local subnet:
#multicastclient 224.0.1.1 # listen on default 224.0.1.1
# Set an optional compensation for broadcast packet delay:
#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 to anyone else by default (more secure)
restrict default limited kod nomodify notrap nopeer noquery
restrict -6 default limited kod nomodify notrap nopeer noquery
#
# Use these lines instead if you do want to serve time and stats to
# other machines on the network:
#restrict default limited kod nomodify notrap nopeer
#restrict -6 default limited kod nomodify notrap nopeer
#
# Disable the ntpdc -c monlist command, which is insecure and can be used
# to cause a denial of service attack (CVE-2013-5211). Future versions of
# NTP will remove this command.
# (this feature was disabled by default with ntpd 4.2.7p230)
disable monitor
#
# Trust ourselves. :-)
restrict 127.0.0.1
restrict ::1
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