Nessus Offline Registration Hot __hot__ Guide
Based on your query, it looks like you are trying to register Nessus for offline use, but the process is a bit confusing (or "hot" with activity/issues).
Here is a step-by-step guide to the Nessus Offline Registration process.
Why Offline Registration?
Offline registration is required when the computer running Nessus cannot connect to the internet (due to firewall restrictions, air-gapped networks, or proxy issues) to validate your license with Tenable.
Prerequisites
A valid Nessus License Code (usually starts with XXXX-XXXX-XXXX-XXXX ).
A separate computer with internet access.
Step 1: Generate the Challenge Code
On the computer where Nessus is installed (the offline machine):
Open a command prompt or terminal as an Administrator/Root.
Navigate to the Nessus installation directory: nessus offline registration hot
Windows: C:\Program Files\Tenable\Nessus
Linux: /opt/nessus/sbin/
Run the command to fetch the challenge code:
nessus-fetch --challenge
You will see a long string of characters labeled Challenge Code . Copy this code. Based on your query, it looks like you
Step 2: Register Offline via Tenable
On a computer that has internet access:
Go to the Tenable Offline Registration page:
Standard: https://plugins.nessus.org/v2/offline.php
US Government/Federal: https://plugins.nessus.org/v2/offline.php?federal=1 (Only use this if you have a Federal license). Offline registration is required when the computer running
On this page, enter:
Your License Code .
The Challenge Code you generated in Step 1.