Local NTP server

Local NTP

It is possible to set a Windows NTP server to update the date and time of the AdvanReader-150.03.

Setting a Windows NTP server

Windows implements the W32Time service as both an NTP client and server. The service is off by default. So configuring a system as an NTP server requires both enabling the W32Time service and configuring it as a server. The process is very simple.

First, use the Services console to locate the Windows Time service. It will likely be off as shown:

It is necessary to both start the service and configure it for Automatic start as shown:

Enabling the NTP server service requires a quick registry modification. Open Regedit and navigate to HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Services \ W32Time \ TimeProviders \ NtpServer and change Enabled from 0 to 1. This is shown in the next image:

The last step is to update the Windows Time service’s running configuration. You do this by opening a command prompt and typing the w32tm /config /update command. You can then verify that the NTP server service is enabled with the w32tm /query /configuration command:

Configuring AdvanReader

Connect to the reader by SSH (PuTTy, ...) and execute the following commands:

sudo service ntp stop
date
sudo ntpdate <IP-Server>
date

If the ntpdate command is not found, do the following:

• • Connect the reader to a network with internet access.

  • Execute the command: sudo apt-get update

  • Execute the command: sudo apt-get install ntpdate

If the ntpdate command doesn't work, the problem maybe a lack of synchronization in the Windows Server. Execute the following commands on the Windows Server with Administrator rights:

@echo on & @setlocal enableextensions

@echo =========================

@echo Turn off the time service

net stop w32time

@echo ======================================================================

@echo Set the SNTP (Simple Network Time Protocol) source for the time server

w32tm /config /syncfromflags:manual /manualpeerlist:"0.it.pool.ntp.org 1.it.pool.ntp.org 2.it.pool.ntp.org 3.it.pool.ntp.org"

@echo =============================================

@echo ... and then turn on the time service back on

net start w32time

@echo =============================================

@echo Tell the time sync service to use the changes

w32tm /config /update

@echo =======================================================

@echo Reset the local computer's time against the time server

w32tm /resync /rediscover

@endlocal & @goto :EOF

Adding the NTPDATE as a service

Once the ntpdate command has worked, do the following to disable the old NTP service and execute the ntpdate command every hour:

sudo su

cd /etc/init.d

update-rc.d ntp remove

cd /home/keonn

nano ntpupdate.sh

• • • Add the following:

#!/bin/bash

sudo ntpdate <IP-Server>

• • • Ctrl+X and then yes to save the file. Then:

chmod +x ntpupdate.sh

crontab -e

• • • Click "i"

    • Go to the last line and copy the following: 0 * * * * /home/keonn/ntpupdate.sh

    • Click "ESCAPE"

    • Type ":wq"