Step 1: Download the agent installer
Head to the Nessus agent download page:
Search for NessusAgent-7.4.1.dmg
Download the file and keep a note where you've saved it.
Step 2: Install the agent
Double-click on the .dmg file and then double-click the "Install Nessus Agent.pkg" installer.
Follow the steps to complete the installation process.
Step 3: Configure and link the agent
To configure each device for scanning you'll need the following two pieces of information:
To identify your devices as targets for vulnerability scanning in our portal, you'll need to name them according to a specific convention. We provide you with a unique client prefix, which needs to prepend what you want to call your device. So if your device is called paul-laptop and your unique client prefix is DQEGBQUAAAc, the device name should be DQEGBQUAAAc_paul-laptop.
A second unique identifier that makes sure your device shows up in the right place - we'll also provide this to you.
Once you have the above information ready, open the Terminal app and run the following command - modifying the placeholders (everything inside [ ] brackets) accordingly:
sudo /Library/NessusAgent/run/sbin/nessuscli agent link --name=[1.Device Name] --cloud --key=[2.Unique Key]