As I've previously mentioned on this blog, our company uses Ubuntu for our servers. I won't re-iterate the reasons why in this post, you can search this blog using an Ubuntu tag if you're interested in them. Our servers have uptimes of months and months, and as a result, the clocks on the machines tend to drift over time, which has inspired me to start using NTP to keep the clocks synchronized. A quick Google search yielded the desired results. In order to manually synchronize with NTP, you can run the following commands :
sudo /etc/network/if-up.d/ntpdate
sudo ntpdate pool.ntp.org
Obviously, entering this command every day or every week gets tiresome and stupid, so you can get cron to schedule this daily for you by running the following commands :
echo "sudo ntpdate ntp.ubuntu.com" >> /etc/cron.daily/ntpdate
chmod 755 /etc/cron.daily/ntpdate
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