Avaya 16-601433 ユーザーズマニュアル

HeartBeat

60 Avaya IP Telephone File Server Application Reference Guide

NTP.CONF

NTP.CONF is the configuration file for the Network Time Protocol Daemon. This file has many
elements however, only a few defaults need to change as underlined in the following sample
file.

# Prohibit general access to this service.

# Enable NTP on this server

restrict default nomodify notrap 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

# -- CLIENT NETWORK -------

# Permit systems on this network to synchronize with this

# time service. Do not permit those systems to modify the

# configuration of this service. Also, do not use those

# systems as peers for synchronization.

# restrict 192.168.1.0 mask 255.255.255.0 notrust nomodify notrap

# --- OUR TIMESERVERS -----

# or remove the default restrict line

# Permit time synchronization with our time source, but do not

# permit the source to query or modify the service on this system.

# restrict mytrustedtimeserverip mask 255.255.255.255 nomodify

notrap noquery

# server mytrustedtimeserverip

server ntp.cis.strath.ac.uk ## The Time server should local #

--- NTP MULTICASTCLIENT ---

#multicastclient# listen on default 224.0.1.1

# restrict 224.0.1.1 mask 255.255.255.255 notrust nomodify notrap

# restrict 192.168.1.0 mask 255.255.255.0 notrust nomodify notrap

# --- GENERAL CONFIGURATION ---

# 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

# synchronization source is available. In case the local host is

# controlled by some external source, such as an external oscillator

# another protocol, the prefer keyword would cause the local host to