Network Time Servers (NTP)

This page provides a quick guide to installing Network Time Protocol (NTP) on your Acme board for clock synchronization with an NTP server

Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks.

First, you'll need to install NTP from Debian repository using be this command:

apt-get update
apt-get install ntp

/etc/ntp.conf contains the ntp configuration ad is already filled out for you.

An important part are the server lines. You can get a list of NTP server addresses at, find the preferred ones for your area, and then add them to the file.

Then you'll need to restart or start the NTPD service:

/etc/init.d/ntp restart

Now check the list of server used to syncronize your clock with this command:

ntpq -c peers
     remote           refid      st t when poll reach   delay   offset  jitter
+vodka.sublink.O  2 u    5  256   71   22.862   -3.480   1.927
-  2 u  186  256  377   22.686   -7.755   2.703
+radha.parvati.i  2 u  176  256  177   20.278    2.958   2.015
 host22-187-177- .INIT.          16 u    - 1024    0    0.000    0.000   0.000
*golem.canonical    2 u    8  256  377   42.582   -3.391   1.657

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