• Nessus essential is a free version of the Nessus vulnerability scanning tool provided by Tenable.
• It allows users to scan up to 16 IP addresses for vulnerabilities, misconfigurations, and compliance issues
• Offering essential scanning capabilities for small teams or individuals looking to improve their security posture without significant investment

Download

Go to the official download page here
Download the .deb file, after select the version and platform (If you have Kali linux, it is a Debian based, so select it)

Install

The file should be downloaded on the Downloads folder
Open a console

cd ~/Downloads                   ## Go to the download folder
sudo dpkg -i package_file.deb    ## Install

Start the service

We need to start the Nessus service called nessusd.service
We have two options, choose one:

1. Start the service and enable it to autostart after future restarts. (Recommended)

sudo systemctl enable nessusd.service

2. Start the service once (You'll need to start manually after every restart)
   Use one of this commands

sudo systemctl start nessusd.service

or

sudo service nessusd.service start

Open

Now, Nessus is installed and also is already running as a server.
As a client, we need to connect to the server through the browser, usually to the https://127.0.0.1:8834/ or the URL showed in the console after installation.

Extra tools

mergeness

• To join nessus informs to a 1 inform

1. Put all files in a folder
2. In that folder copy the .py tool
3. Run tool

NessusParser-Excel

To convert .nessusto .xlsx

python3 nessusparser.py -l ORIGIN_DIR -o DEST_DIR