Tenable Security Center does not support an unlicensed demo mode. License keys are required for Tenable Security Center and for all attached Tenable products. You first configure your Tenable Security Center license and additional Tenable product licenses during quick start, as described in Quick Setup.
You can update your Tenable Security Center license in an externally connected or air-gapped environment, as described in Update an Existing License.
Tenable Security Center 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.
Tip: For information about Tenable Security Center-Tenable product registration server communications encryption, see Encryption Strength.
Tenable Security Center 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 Security Center 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 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 generates a warning in the web interface when you approach or exceed the license limit.
Counted Toward License
Not Counted Toward 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 counts the detected IP addresses against your license.
Your Tenable Security Center+ Product Licenses
Tip: Tenable rebranded Tenable Security Center Continuous View as Tenable Security Center+.
If you want to use Tenable Security Center with other Tenable products, you must add their activation codes to Tenable Security Center. For more information, see Apply a New License.
Your Tenable Lumin License
If you want to view and analyze your data in Tenable Vulnerability Management using Tenable Lumin, you must acquire a Tenable Lumin license for use with your Tenable Security Center deployment.
Tip: Synchronized assets that count toward your Tenable Security Center license also count toward your Tenable Vulnerability Management license.
For more information, contact your Tenable representative.