Configuring NTP servers

  • Updated on Dec 9, 2024
  • Published on Dec 6, 2024
  • 1 minute(s) read

By default, Edge Node clocks are synchronized to the default NTP pool servers. This article shows how to configure custom NTP time server(s) that an Edge Node (formerly Edge iNode) will use to sync it’s clock, using either the Node CLI or the web UI.

For instructions on using SSH to connect to an Edge Node, see Access an Edge Node console.

Default NTP pool servers

The default NTP pool servers vary depending on the distro of the node operating system. If you’re not sure of the distro you have, see Finding Edge Node version and distro.

For debian distro, below are the default NTP pool servers:

pool 0.debian.pool.ntp.org
pool 1.debian.pool.ntp.org
pool 2.debian.pool.ntp.org
pool 3.debian.pool.ntp.org

For nodeos distro, below are the default NTP pool servers:

time1.google.com
time2.google.com
time3.google.com
time4.google.com

Configure an NTP server with the CLI

To configure an NTP server, use the set time-server command with the following steps:

The examples below use NTP servers 192.170.0.x on the LAN. You can use NTP servers either on your LAN or on the internet.
  1. Use SSH to connect to the node.
  2. Use the set time-server command to enter the time-server command prompt:
    Shell
    > set time-server
(set time-server) >
  3. Use the server command with the following arguments to configure the NTP server:
    Shell
    server --addr <addr>
    For example:
    Shell
    (set time-server) > server --addr 192.170.0.15
    To configure more than one NTP server:
    Shell
    (set time-server) > server --addr 192.170.0.15 --addr 192.170.0.152 --addr 192.170.0.16
    To configure an NTP server using its fully qualified domain name:
    Shell
    (set time-server) > server --addr time2.google.com
  4. Use the save command to save the configuration:
    Shell
    (set time-server) > save
  5. To see the configured NTP servers, use the show command:
    Shell
    (set time-server) > show
    For example:


  6. Use the exit command to exit the set time-server command:
    Shell
    (set time-server) > exit
>


Configure an NTP Server with the web UI

Use the following steps to configure the time servers for the node uplink interface using the web UI:

  1. Expand the Configuring For Static IP section.
  2. Under NTP Settings, enter the desired NTP server IP addresses or FQDNs.
  3. You can configure up to four time servers.
  4. Select Submit.