Run a Diagnostic Scan

Required User Role: Organizational user with appropriate permissions. For more information, see User Roles.

If you experience issues with an active scan, Tenable Support may ask you to run a diagnostic scan to assist with troubleshooting. After Tenable Security Center runs the diagnostic scan, download the diagnostic file and send it to Tenable Support.

Before you begin:

• Add an active scan, as described in Add an Active Scan.
• Confirm the scanner associated with the active scan is running a supported version of Tenable Nessus. For minimum Tenable Nessus scanner version requirements, see the Tenable Security Center Release Notes for your version.

To run a diagnostic scan:

1. Click Scans > Active Scans.

2. Right-click the row for the scan where you want to run a diagnostic scan.

   The actions menu appears.

   -or-

   Select the check box for the scan where you want to run a diagnostic scan.

   The available actions appear at the top of the table.

3. Click Run Diagnostic Scan.

   Note: You must resolve repository errors before running a diagnostic scan.

4. In the Diagnostic Target box, type a target as a single IPv4 address, IPv6 address, or hostname. The target must also be specified in the active scan's Targets.

5. In the Diagnostic Password box, type a password to secure the diagnostic file.

6. Click Submit.

   The diagnostic scan runs and finishes.

7. Click Scans > Scan Results.
8. Locate the diagnostic scan and confirm that the scan finished without errors.

9. Right-click the row for the diagnostic scan result.

   The actions menu appears.

   -or-

   Select the check box for the diagnostic scan result.

   The available actions appear at the top of the table.

10. Click Download Diagnostic Info.

    The diagnostic scan file downloads.