Instalasi dan Konfigurasi NTP SERVER LOCAL Di Debian Lenny 5.0

Instalasi dan Konfigurasi NTP SERVER LOCAL Di Debian Lenny 5.0

Secara umum, Network Time Protocol (NTP) adalah protocol untuk meng-sinkron-kan sistem waktu pada komputer terhadap sumber (server). Terdapat beberapa situs NTP “Stratum 1″ (situs NTP dengan sumber waktu dari atomic clock) and “Stratum 2″ (situs NTP dengan sumber waktu dari situs NTP lain, dengan sedikit penurunan tingkat akurasi) yang dapat digunakan oleh publik. Namun saya akan membuat bagaimana membuat ntp server lokal, jadi tidak perlu adanya akses internet. Caranya sangat mudah:

#Instalasinya#

 pertama masuk root console, dan install paket ntp yang dibutuhkan

      # apt-get install ntp ntpdate

     # nano /etc/ntp.conf

edit dan tambahkan :

# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help

driftfile /var/lib/ntp/ntp.drift

# Enable this if you want statistics to be logged.

#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

# You do need to talk to an NTP server or two (or three).

#server ntp.your-provider.example

# pool.ntp.org maps to about 1000 low-stratum NTP servers. Your server will

# pick a different set every time it starts up. Please consider joining the

# pool: <http://www.pool.ntp.org/join.html>

#server 0.debian.pool.ntp.org iburst dynamic

#server 1.debian.pool.ntp.org iburst dynamic

#server 2.debian.pool.ntp.org iburst dynamic

#server 3.debian.pool.ntp.org iburst dynamic

server 127.127.1.0 iburst

fudge 127.127.1.0 stratum 10

# Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for

# details. The web page <http://support.ntp.org/bin/view/Support/AccessRestrictions>

# might also be helpful.

#

# Note that "restrict" applies to both servers and clients, so a configuration

# that might be intended to block requests from certain clients could also end

# up blocking replies from your own upstream servers.

# By default, exchange time with everybody, but don't allow configuration.

restrict -4 default kod notrap nomodify nopeer noquery

restrict -6 default kod notrap nomodify nopeer noquery

# Local users may interrogate the ntp server more closely.

restrict 127.0.0.1

restrict ::1

# Clients from this (example!) subnet have unlimited access, but only if

# cryptographically authenticated.

#restrict 192.168.123.0 mask 255.255.255.0 notrust

# If you want to provide time to your local subnet, change the next line.

# (Again, the address is an example only.)

#broadcast 192.168.123.255

# If you want to listen to time broadcasts on your local subnet, de-comment the

# next lines. Please do this only if you trust everybody on the network!

#disable auth

#broadcastclient

Simpan dengan mengetikkan ctrl+o

Setelah itu restart program dengan mengetikan 

#/etc.init.d/ntp restart

ketikkan perintah 

#ntpq -p (untuk melihat hasil konfigurasi)

> *gambar ketika sudah sinkron dengan server ntp local terdapat tanda * didepan LOCAL (0)