Use the nessuscli tool to apply the update directly. The command varies slightly by operating system: Perform an Offline Nessus Plugin Update
Once you have transferred the .tar.gz file to your offline scanner via secure media (like a USB drive), use one of the following methods to install it: download nessus-update-plugins all-2.0.tar.gz
: Enter your Challenge Code (generated on the offline Nessus scanner using nessuscli fetch --challenge ) and your Activation Code . Use the nessuscli tool to apply the update directly