Nessus Offline Activation License Already In Use

Open your terminal and run: /opt/nessus/sbin/nessuscli fetch --challenge Use code with caution.

# /opt/nessus/sbin/nessuscli fetch --register-offline /path/to/nessus.license

Navigate to the Tenable Community Portal and log in with your registered credentials. Click on or Products from the main dashboard.

Transfer these files to your offline machine and register the license using: nessuscli fetch --register-offline Primary Contact Product Owner nessus offline activation license already in use

With your reset and your new Challenge Code in hand:

Accidentally attempting to use the same license key on a secondary test environment or backup scanner. Step 1: Reset the License via the Tenable Community Portal

nessuscli fetch --register-offline Directories to place the file (recommended): Linux: /opt/nessus/etc/nessus/ Windows: C:\ProgramData\Tenable\Nessus\conf\ macOS: /Library/Nessus/run/etc/nessus/ 5. Finalize with plugin updates Update License Offline (Tenable Nessus 10.11) Transfer these files to your offline machine and

Navigate to the and log in with your corporate credentials. Click on My Products or Licenses from the main dashboard.

Open your terminal or command prompt as an administrator and run the appropriate command for your operating system:

Confirm the action. Your activation code status should instantly revert to or "Available." Step 2: Clear the Stale License on the Nessus Host Click on My Products or Licenses from the main dashboard

For the changes to fully process, restart the underlying daemon: systemctl restart nessusd

: Reinstalling the OS or deleting a Nessus instance without first deactivating the license leaves the code "locked" to the old instance. Hostname Changes

Move the nessus.license file to your offline scanner and register it using the command line: nessuscli fetch --register-offline nessus.license

Transfer the nessus.license file and the plugin archive to your isolated machine using a secure USB drive or approved internal file transfer protocols.

nessuscli.exe fetch --register-offline C:\path\to\nessus.license 2. Install the Plugins Archive