Despite best efforts, some situations require professional assistance. Contact Tenable Support when:
Copy the provided URL link to download the latest plugin archive ( all-2.0.tar.gz ). Step 4: Apply the License and Plugins Offline
: On an internet-connected machine, go to the Nessus Offline Registration Page . Enter your Challenge Code and your Activation Code . Download the resulting nessus.license file.
If you are setting up Nessus in an offline environment, following the official procedure meticulously will help you avoid activation issues. nessus offline activation license already in use
Complete the installation by updating the plugins:
On your offline Nessus machine, you need a unique challenge code tied to that specific hardware. /opt/nessus/sbin/nessuscli fetch --challenge
Before diving into the error, let's briefly discuss Nessus offline activation. When you purchase a Nessus license, you're provided with a license file that needs to be activated on the Nessus scanner. Online activation is a straightforward process that involves uploading the license file to the Nessus server, which then verifies the license and activates it. However, in offline environments or situations where internet connectivity is restricted, offline activation is necessary. Enter your Challenge Code and your Activation Code
Run the following command on your Nessus server to view the current system fingerprint:
in the Tenable portal before the offline registration page will accept it again
If deploying Nessus on a virtual machine, configure a static MAC address. Dynamic MAC addresses change upon reboot or migration, which alters the challenge code and breaks offline licensing. Complete the installation by updating the plugins: On
Click on the My Products tab at the top of the page.
If you change your machine's hardware or virtual MAC address, the challenge code will change, requiring a license reset even if you are using the same "system".