In this guide you will learn how to:

Overview

NTP is a networking protocol designed to synchronize the clocks of computers over a network. NTP allows you to synchronize the clocks of all the systems within the network. Currently, validators' local clocks must stay reasonably in sync, so you should be running NTP or a similar service. You can check whether you have the NTP client by running:

Linux

If you are using Ubuntu 18.04 / 19.04, NTP Client should be installed by default.

**timedatectl**

If NTP is installed and running, you should see System clock synchronized: yes (or a similar message). If you do not see it, you can install it by executing:

**sudo apt-get install ntp**

ntpd will be started automatically after install. You can query ntpd for status information to verify that everything is working:

**sudo ntpq -p**