The results of each scan are quickly separated into five levels of criticality: info, low, medium, high, and critical. Additionally, the results of these scans are clearly organized and easy enough for end-users with little-to-no background experience to understand. Nessus offers users the ability to create policies for customized scans by enabling dozens of available plugins, which allow users to conduct scans that easily identify specific vulnerabilities on the system they’re scanning. Nessus features several practical uses for cybersecurity professionals. To download Nessus Home, obtain an activation code by subscribing with your name and e-mail address and then download the latest version of Nessus Home for your operating system. With Nessus Home, users can scan up to 16 IP addresses at high speeds with in-depth assessments.

Obviously, the commercial version comes with more features, but this does not in any way degrade the effectiveness of Nessus Home.

It is free to home users for personal use (Nessus Home), but requires a license for commercial use (Nessus Professional). Nessus is a proprietary vulnerability scanner created by Tenable, Inc.

How to use nessus+tutorial