Log into Nessus UI (https:// :8834). Go to Settings > About – verify that the license is active and plugins are loaded.
The machine where Nessus is installed.
Alternatively, log in to the Nessus UI, go to Settings , click the pencil icon next to your activation code, and select Offline registration to view the code. Step 2: Obtain License and Plugins On a computer with internet access: Navigate to the Nessus Offline Activation Page . nessus offline activation
How to Activate Nessus Offline (Air-Gapped / No Internet) Log into Nessus UI (https:// :8834)
(via USB, SCP, etc.) to the offline system. log in to the Nessus UI
This outputs a long string – the . Copy it.