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FusionInsight HD 6.5.0 Administrator Guide 02

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Configuring NTP Security Authentication

Configuring NTP Security Authentication


FusionInsight system allows a third-party NTP server to serve as an external clock source when Manager is installed to synchronize the time on the active management node with that on the external clock source. If NTP security authentication is not configured in a cluster, the time synchronization function is normal, but there may be security risks. To avoid the security risks, it is advised to use the external clock source with the enabled authentication function and to configure NTP security authentication.

By default, the active management node serves as an NTP server in the cluster. The time on the other nodes in the cluster is automatically synchronized with that on the active management node. NTP security authentication is configured for time synchronization in a cluster.


  • Manager has been installed and a third-party NTP server with the enabled authentication function has been appointed. Manager supports a maximum of two third-party NTP servers.
  • You have obtained the NTP authentication key.


  1. Use PuTTY to log in to the active management node using the active management IP address as user omm.

    The operation does not need to be performed on the standby management node.

  2. Run the following command to go to the related directory:

    cd ${BIGDATA_HOME}/om-server/om/bin/tools/

  3. Run the following command to configure the NTP authentication key used for accessing the third-party NTP server from a cluster.

    sh --ntp_server_ip ip_address

    ip_address: indicates the IP address of the third-party NTP server. It does not support multiple IP addresses. That is, if there are multiple NTP servers, you need to run the command for each NTP server for authentication.

    For example, run the following command to access the third-party NTP server with the IP address of The authentication key is 10 M b273290137CH.

    sh --ntp_server_ip

    Enter the NTP authentication key as prompted, and press Enter. The authentication key index value cannot be 1. You are advised to use other values.

    Please input authentication_code:

    If the following information is displayed, the NTP security authentication is configured successfully.

    Success to Authenticate ntp server to

Updated: 2019-05-17

Document ID: EDOC1100074522

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