Don't be an accidental vandal

In 2005, the operator of one of the top-level Network Time Protocol (NTP) time servers in Denmark noticed that a large volume of requests hitting his server were invalid. The NTP is one of those very useful and often ignored internet services that lets you keep the clocks of all your machines in sync. Synchronized clocks make log analysis much more straightforward, so a good clock is essential for security services.

by Nick Barron

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