License Requirements

Tenable Security Center Director does not support an unlicensed demo mode. License keys are required for Tenable Security Center Director and for all attached Tenable products. You first configure your Tenable Security Center Director license and additional Tenable product licenses during quick start, as described in Quick Setup.

You can update your Tenable Security Center Director license in an externally connected or air-gapped environment, as described in Update an Existing License.

Tenable Security Center Director requires an internet connection to validate additional Tenable product licenses. To apply a license for an additional Tenable product, see Apply a New License. To update a license for an additional Tenable product, see Update an Existing License.

You cannot upgrade a Tenable.sc license to a Tenable Security Center Director license or downgrade a Tenable Security Center Director license to a Tenable.sc license.

Tip: For information about Tenable.sc-Tenable product registration server communications encryption, see Encryption Strength.

Your Tenable.sc License

Tenable Security Center Director licenses are valid for a specific hostname and for a maximum number of active assets (identified by IP address or UUID). Assets are counted towards your license limit depending on how Tenable.sc discovers, or sees, the asset. In general, an asset does not count against your license limit unless it has been assessed for vulnerabilities.

For example, if you purchase a 500 asset Tenable Security Center Director license, you can perform host discovery on your network but you cannot assess more than 500 assets. For more information about discovery and assessment scanning, see Scanning Overview.

Tenable Security Center Director generates a warning in the web interface when you approach or exceed the license limit. To upgrade your license, contact your Tenable representative.

Counted Toward License

Not Counted Toward License

  • IP addresses from active scans

  • IP addresses from Tenable Log Correlation Engine instances

  • IP addresses from Nessus Network Monitor instances not in discovery mode

  • IP addresses in offline repositories that you downloaded using the same Tenable.sc instance or license

A single IP address or UUID counts once toward your license, even if it was scanned by multiple methods or stored in multiple repositories.

Note: If you use an alternative port scanner, Tenable Security Center Director counts the detected IP addresses against your license.

  • IP addresses present only from imports to offline repositories

  • IP addresses present only from Nessus Network Monitor instances in discovery mode

  • IP addresses in offline repositories that you downloaded using the same Tenable.sc instance with a different license

  • IP addresses in offline repositories that you downloaded using a different Tenable.sc instance and license

  • The following excluded plugins:

    Tenable Nessus — 10180, 10287, 10335, 11219, 11933, 11936, 12053, 14272, 14274, 19506, 22964, 33812, 33813, 34220, 34277, 45590, 54615, 87413, and 112154.

    Tenable Nessus Network Monitor — 0, 12, 18, 19, 20, 113, and 132.

    LCE — 800000 through 800099.

Your Tenable.sc Continuous View Product Licenses

If you want to use Tenable Security Center Director with other Tenable products, you must add their activation codes to Tenable.sc. For more information, see Apply a New License.