NTP: Creating an NTP Server

apt-get install ntp

cp /etc/inet/ntp.server /etc/inet/ntp.conf

# /etc/ntp.conf, configuration for ntpd

# ntpd will use syslog() if logfile is not defined
logfile /var/log/ntpd

driftfile /var/lib/ntp/ntp.drift
statsdir /var/log/ntpstats/

statistics loopstats peerstats clockstats
filegen loopstats file loopstats type day enable
filegen peerstats file peerstats type day enable
filegen clockstats file clockstats type day enable
# Servers to use to update
server 0.fr.pool.ntp.org prefer
server 1.fr.pool.ntp.org
server 2.fr.pool.ntp.org

# ... and use the local system clock as a reference if all else fails
server 127.127.1.0
# fudge 127.127.1.0 stratum 13

# Local users may interrogate the ntp server more closely.
restrict 127.0.0.1

# Allow local network to synchronize to this server
restrict 192.168.0.0 mask 255.255.255.0 nomodify notrap

broadcastdelay 0.008

#
# Copyright 1996-2003 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# /etc/inet/ntp.server
#
# An example file that could be copied over to /etc/inet/ntp.conf and
# edited; it provides a configuration template for a server that
# listens to an external hardware clock, synchronizes the local clock,
# and announces itself on the NTP multicast net.
#

# This is the external clock device.  The following devices are
# recognized by xntpd 3-5.93e:
#
# XType Device    RefID          Description
# -------------------------------------------------------
#  1    local     LCL            Undisciplined Local Clock
#  2    trak      GPS            TRAK 8820 GPS Receiver
#  3    pst       WWV            PSTI/Traconex WWV/WWVH Receiver
#  4    wwvb      WWVB           Spectracom WWVB Receiver
#  5    true      TRUE           TrueTime GPS/GOES Receivers
#  6    irig      IRIG           IRIG Audio Decoder
#  7    chu       CHU            Scratchbuilt CHU Receiver
#  8    parse     ----           Generic Reference Clock Driver
#  9    mx4200    GPS            Magnavox MX4200 GPS Receiver
# 10    as2201    GPS            Austron 2201A GPS Receiver
# 11    arbiter   GPS            Arbiter 1088A/B GPS Receiver
# 12    tpro      IRIG           KSI/Odetics TPRO/S IRIG Interface
# 13    leitch    ATOM           Leitch CSD 5300 Master Clock Controller
# 15    *         *              TrueTime GPS/TM-TMD Receiver
# 17    datum     DATM           Datum Precision Time System
# 18    acts      ACTS           NIST Automated Computer Time Service
# 19    heath     WWV            Heath WWV/WWVH Receiver
# 20    nmea      GPS            Generic NMEA GPS Receiver
# 22    atom      PPS            PPS Clock Discipline
# 23    ptb       TPTB           PTB Automated Computer Time Service
# 24    usno      USNO           USNO Modem Time Service
# 25    *         *              TrueTime generic receivers
# 26    hpgps     GPS            Hewlett Packard 58503A GPS Receiver
# 27    arc       MSFa           Arcron MSF Receiver
#
# * All TrueTime receivers are now supported by one driver, type 5.
#   Types 15 and 25 will be retained only for a limited time and may
#   be reassigned in future.
#
# Some of the devices benefit from "fudge" factors.  See the xntpd
# documentation.

# Either a peer or server.  Replace "XType" with a value from the
# table above.
# Servers to use to update
server 0.fr.pool.ntp.org prefer
server 1.fr.pool.ntp.org
server 2.fr.pool.ntp.org
# fudge 127.127.XType.0 stratum 0

broadcast 224.0.1.1 ttl 4

enable auth monitor
driftfile /var/ntp/ntp.drift
statsdir /var/ntp/ntpstats/
filegen peerstats file peerstats type day enable
filegen loopstats file loopstats type day enable
filegen clockstats file clockstats type day enable

keys /etc/inet/ntp.keys
trustedkey 0
requestkey 0
controlkey 0

touch /etc/inet/ntp.drift

svcadm enable svc:/network/ntp:default

ntpdate my_time_server

cp /etc/inet/ntp.client /etc/inet/ntp.conf
svcadm enable svc:/network/ntp:default

net time /setsntp:my_time_server
net time /querysntp
net stop w32time && net start w32time

tzconfig

dpkg-reconfigure tzdata