Migrate to Oracle Linux 8 Tenable Core (Nessus)

To migrate your Tenable Core + Tenable Nessus application to Oracle Linux 8 (OL8), you need to perform two tasks: back up your current data and then restore your backup in the Core user interface with OL8.

Note: During a backup or a restore, Tenable Core stops the Tenable Nessus application service. You cannot use Tenable Core during this time. After the backup or restore completes, your services restart and Tenable Nessus resumes normal function.

Before you begin:

  • The application must be the same version on both the source and destination systems. The version matching can be an upgrade on the old system, or a downgrade on the new system. This is required.

    Note: If you get the error message: "This backup was taken from an incompatible version of Tenable Core (tc#) and it cannot be restored on this tc# system. The application version of this backup (v# X.X.X) is not compatible with the version installed on this system (v# X.X.X)," you must manually downgrade the OL8 system using the process found on the Downgrade Before an Rsync Migration page in the Appliance-Tenable Core Migration Guide.

  • Check your firewall settings and confirm that your computer can access port 8090 on Tenable Core, as described in Access Requirements.

  • For help with issues encountered during the process, refer to the FAQ.

  1. Log in to Tenable Core via the user interface, as described in Log In to Tenable Core.

    The Tenable Core web user interface page appears.

  2. In the left navigation bar, click Backup/Restore.

    The Backup/Restore page appears.

  3. In the Available Modules section, click Take Backup Now next to Nessus (Configuration Only).

    The Backup in Progress window appears. The window disappears after the system completes the backup.

  1. Log in to Tenable Core via the user interface, as described in Log In to Tenable Core.

    The Tenable Core web user interface page appears.

  2. In the left navigation bar, click Backup/Restore.

    The Backup/Restore page appears.

  3. In the Upload and Restore section, click Choose a file.

    Your file manager appears.

  4. Select the desired backup file.

  5. Click Open.

    A details window for the backup appears.

  6. If prompted, confirm that you want to upgrade or downgrade your current Tenable Core application version to match the application version from your backup file.

  7. Click Restore.

    The system restores your backup to Tenable Core.

    Note: Do not log out of Tenable Core or close your browser until after the Uploading the archive task is complete. If you end your session early, the restore fails.

    When the restore finishes, a success message appears.

    Tip: If the restore attempt fails, an error message appears with details and remediation instructions. Resolve the errors and click Retry.