View source for Network Time Protocol

== Syncing your clock to Virginia Tech's time servers ==
Virginia Tech hosts four [[w:Network Time Protocol|Network Time Protocol]] (NTP) servers:

* '''ntp-1.vt.edu''' (198.82.1.201)
* '''ntp-2.vt.edu''' (198.82.1.202)
* '''ntp-3.vt.edu''' (198.82.1.203)
* '''ntp-4.vt.edu''' (198.82.1.204)

=== Using Gnome ===
# Right click on the clock in the top right hand corner of your desktop and select '''Adjust Date &amp; Time'''.
# You may have to enter your password to continue.
# From the '''Configuration''' drop-down list, select '''Keep synchronized with Internet servers'''.
# You may need to click '''Install NTP support'''.
# Click '''Select Servers'''.
# Type <code>ntp-1.vt.edu</code>
# Click the '''Add''' button.
# Type <code>ntp-2.vt.edu</code>
# Click the '''Add''' button.
# Type <code>ntp-3.vt.edu</code>
# Click the '''Add''' button.
# Type <code>ntp-4.vt.edu</code>
# Click the '''Add''' button.
# Click the '''Close''' button.
# Click the '''Close''' button again.

=== Using ntpd ===
Backup your <code>/etc/ntp.conf</code>:
<pre>
# cp /etc/ntp.conf /etc/ntp.conf.bak
</pre>

Add the following lines to <code>/etc/ntp.conf</code>: 
<pre>
server ntp-1.vt.edu
server ntp-2.vt.edu
server ntp-3.vt.edu
server ntp-4.vt.edu
</pre>

=== Using ntpdate ===
Change the contents of <code>/etc/cron.daily/ntpdate</code> to:
<pre>
ntpdate ntp-1.vt.edu ntp-2.vt.edu ntp-3.vt.edu ntp-4.vt.edu
</pre>


[[Category:Howtos]]
[[Category:Campus computing resources]]