NTP Servers

Managing NTP Servers

  2 minute read

Network Time Protocol (NTP) servers are used to sync the local system time with an accurate reference. By default, several entries for NTP servers are created for new installations, but you can connect with custom NTP servers as needed.

NTP Server

Go to System > NTP Servers to view, edit, or remove NTP Servers.

NTP Server Options

AddressstringEnter the hostname or IP address of the NTP server.
BurstcheckboxRecommended when Max. Poll is greater than 10. Only use on personal servers. Do not use with a public NTP server.
IBurstcheckboxSpeed up the initial synchronization, taking seconds rather than minutes.
PrefercheckboxThis option is only recommended for highly accurate NTP servers, such as those with time monitoring hardware.
Min PollintegerThe minimum polling interval, in seconds, as a power of 2. For example, 6 means 2^6, or 64 seconds. The default is 6, minimum value is 4.
Max PollintegerThe maximum polling interval, in seconds, as a power of 2. For example, 10 means 2^10, or 1,024 seconds. The default is 10, maximum value is 17.
ForcecheckboxForce the addition of the NTP server, even if it is currently unreachable.

Editing a NTP Server

Click (Options) and select Edit. Edit as needed and click Save.

Deleting a NTP Server

Click (Options) and select Delete.

Last modified December 23, 2020: Update ntp-servers.md (faa6689f)