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#if $getVar('ntp_server', '') == ""
#set $ntp_server = '0.centos.pool.ntp.org'
#end if
chkconfig ntpd on
cat << EOF > /etc/ntp.conf
# For more information about this file, see the man pages
# ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5).
# Include the option tinker panic 0 at the top of your ntp.conf file.
# By default, the NTP daemon sometimes panics and exits if the underlying clock
# appears to be behaving erratically. This option causes the daemon to keep
# running instead of panicking.
tinker panic 0
driftfile /var/lib/ntp/drift
# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery
# Permit all access over the loopback interface. This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
restrict 127.0.0.1
restrict -6 ::1
# Hosts on local network are less restricted.
# restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
# server 0.centos.pool.ntp.org
# server 1.centos.pool.ntp.org
# server 2.centos.pool.ntp.org
server $ntp_server
# broadcast 192.168.1.255 autokey # broadcast server
# broadcastclient # broadcast client
# broadcast 224.0.1.1 autokey # multicast server
# multicastclient 224.0.1.1 # multicast client
# manycastserver 239.255.254.254 # manycast server
# manycastclient 239.255.254.254 autokey # manycast client
# Undisciplined Local Clock. This is a fake driver intended for backup
# and when no outside source of synchronized time is available.
server 127.127.1.0 # local clock
# Enable public key cryptography.
# crypto
includefile /etc/ntp/crypto/pw
# Key file containing the keys and key identifiers used when operating
# with symmetric key cryptography.
keys /etc/ntp/keys
# Specify the key identifiers which are trusted.
# trustedkey 4 8 42
# Specify the key identifier to use with the ntpdc utility.
# requestkey 8
# Specify the key identifier to use with the ntpq utility.
# controlkey 8
# Enable writing of statistics records.
# statistics clockstats cryptostats loopstats peerstats
EOF
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