How to Install and Use Nessus Vulnerability Scanner on Ubuntu 24.04

Prerequisites

• Ubuntu 24.04 server
• SSH access with sudo privileges
• Internet connection

Step 1: Update System Packages

sudo apt update && sudo apt upgrade -y

Step 2: Download Nessus Installer

wget https://www.tenable.com/downloads/api/v1/public/pages/nessus/downloads/14443/download?i_agree_to_tenable_license_agreement=true -O Nessus.deb

Step 3: Install Nessus

sudo dpkg -i Nessus.deb

sudo systemctl enable nessusd && sudo systemctl start nessusd

Step 4: Access Nessus Web Interface

Open a web browser and go to:

https://your-server-ip:8834

Follow the on-screen instructions to set up Nessus.

Step 5: Running Your First Scan

1. Log in to the Nessus web interface.
2. Navigate to Scans and click New Scan.
3. Choose a scan template and enter target details.
4. Click Launch to start the scan.