Install Tenable Agent
Requirements
Hosts in the LCC database previously configured
Host with internet access via HTTPS protocol, port TCP/443
Nessus Agent Linking Key
Overview
This guide provides step-by-step instructions for using the Nessus Agent installation playbook available in the LCC 7 Library.
Objective
The purpose of the Install Tenable Agent playbook from the 7 Library is to facilitate the installation of the Nessus Agent, allowing mass installation on Linux hosts in an automated manner.
Linking Key for the Nessus Agent
The key is used during the Agent installation to associate the Host with an account in Tenable Cloud, so that the Scan result is directed to the correct location via the Web.
Access the website https://cloud.tenable.com and log in with your environment credentials.
Click the gear in the top right corner
Click Sensors
Click Nessus Agents
Click ADD Nessus Agent
Copy the Linking Key with the Copy button and save it in a text editor
Nessus Binary Download Link Agent
To run the playbook, you need to get the correct download link for the Nessus Agent installation package.
Go to the official Nessus Agent download link https://www.tenable.com/downloads/nessus-agents?loginAttempted=true and download the package compatible with the Linux host where the playbook will be run.
Open the Download History page of your browser and right-click on the downloaded package.
Click Copy Link Address
Save the download address along with the Linking Key to make the next step easier.
Install Tenable Agent Playbook Configuration
With the Linking Key and download address in hand, follow the steps below;
Click 7 Library in the LCC left menu
Click Sync Feed to update the 7 Library feed
Click on the Install Tenable Agent playbook
Click Download and the playbook will be saved to the LCC and available on the Playbooks screen
Click Playbooks in the LCC left menu and click on the Install Tenable Agent playbook
Click Variables
Enter the values of the variables; - URL: Enter the package download link copied in the previous step
PACKAGE_TYPE: Enter the package manager of the Linux distribution in which the playbook will be executed:
apt
orrpm
LINKING_KEY: Linking Key obtained from Tenable Cloud
FLAGS: Default value:
--cloud
BIN_PATH: Default value:
/opt/nessus_agent/sbin/nessuscli
AGENT_GROUPS: Enter the name of the Tenable Cloud Assets group in which the Hosts will be inserted
/opt/nessus_agent/sbin/nessuscli
Click Save
Select the playbook and click Actions and then Run
Choose the desired Host or Host Group and click Yes to run the playbook.
Installation Validation
To validate if the installation was completed successfully;
Click Dashboard in the left side menu of the LCC and scroll down to the Host Actions log
Success will appear when executed correctly and Error when an error occurs during the process.
Click EXPAND to read the log details.
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