NTP Configuration for automatic updating 1

[Axoliien]

I have a single client machine that needs to run NTP. I have set it up to run ntpd as follows on stratum 2:
ntpdate -d -v ntp-1.vt.edu

I have already input several servers into the ntp.conf file. Now I need to auto update the system clock every few days or so, perhaps once every day or once every 3 days. Can anyone help me to determine how to do this, since I won't be restarting the system unless it crashes.

 

[thedaver]

How about a cron entry to run the ntpdate command? I run it hourly to prevent drift. pretty easy

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[spydyr]

If you're running on Redhat you can use the ntpd service.

Edit /etc/ntp.conf and add
server ntp-1.vt.edu

Edit /etc/ntp/step-tickers and add
ntp-1.vt.edu

Now start the service
service ntpd start

And to make sure ntpd starts on boot-up
chkconfig ntpd on

I forget how often the service checks for time adjustments but you can check it's activity in /var/log/messages

Note - If you're running ntpd ntpdate will not work

 

[Axoliien]

Excellent, I looked up cron and created a few instances today to learn how it all works. Very cool ideas, thanks for pointing me in the right direction!