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Offline Activation and Plugin Updates

The following steps explain how to activate LCE and update LCE plugins on an air gapped network.

Offline Activation

  1. Go to, and log in.

  2. In the Main Menu box, click Activation Codes.

  3. Next to Log Correlation Engine, click +.
  4. Copy the activation code to be used with the offline LCE server.
  5. Log in to the offline LCE terminal as root user, and execute the command below.

    # /opt/lce/daemons/lce_wwwd --challenge



    Copy the challenge above and paste it (with your Activation Code) into:

  6. Go to and enter the activation code and challenge code obtained in the previous steps.

  7. Select the link that is generated to download the current plugin set. Make a copy of the link that is returned. The link provided will be valid until the LCE subscription expires. Save the link, as it will be needed each time the plugins are manually updated.

  8. Select the link to download the license key, lce.license, or create an lce.license file by copying the license into a text file from -----BEGIN TENABLE LICENSE----- to -----END TENABLE LICENSE-----.

  9. On the LCE server host, copy the lce.license file to /opt/lce/daemons, and run the following command:

    # /opt/lce/daemons/lce_wwwd --register-offline lce.license

  10. Go to https://<ip address of your lce>:8836 and complete the Quick Setup.

  11. To verify the license has been loaded successfully, on the top navigation bar, click Health and Status, and then on the left pane, click Plugins. The Activation Status should be Licensed.

Offline Plugin Updates

Before you begin, complete step 5 of the Offline Activation procedure to obtain a link download the latest lce-combined.tar.gz file. You will use this link to obtain the latest plugins for the duration of your LCE subscription. The lce-combined.tar.gz file contains updates for LCE PRM(s), TASL(s), discoveries, client policies, the web client, and the web server.

  1. Download the latest lce-combined.tar.gz file.

  2. Log in to the LCE interface (https://<ip address of your lce>:8836), and on the top navigation bar, click Configuration.

    The Configuration page appears, displaying the Basic section.

  3. On the left pane, click Feed Settings.

    The Feed Settings section appears.

  4. Under Offline Plugin Update, click the Add Plugins button, and then select the lce-combined.tar.gz file you downloaded in step 1.

  5. After the file is successfully uploaded, click the Process Plugins button. The process may take a short time to complete.
  6. To verify the plugins have been successfully loaded, on the top navigation bar, click Health and Status, and then, on the left pane, click Feed. The Plugin Set and the Plugin Set Loaded should now reflect the latest set of plugins.

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