If you would like to expand this deployment setup, please let me know:

: You still have to perform the browser-based "activation" after the container starts, which means it isn't fully "hands-off" until it is licensed. Quick Setup Guide (April 2026)

: It is incredibly easy to test new Nessus versions or roll back to previous ones by simply changing the image tag (e.g., tenable/nessus:10.7.1 ).

docker run -d \ --name nessus_scanner \ -p 8834:8834 \ -v nessus_data:/opt/nessus \ -e ACTIVATION_CODE="YOUR-CODE-HERE" \ -e USERNAME="admin" \ -e PASSWORD="SecurePassword123" \ tenable/nessus:latest Use code with caution. ⚙️ Post-Deployment Setup Accessing the Web UI Open your web browser.

Limit CPU and memory usage using native Docker flags.

Deploy multiple distributed scanners across isolated networks easily.

The Nessus Docker container is a "must-have" for security consultants and DevOps teams who need to spin up a scanner in minutes without worrying about underlying OS dependencies. However, it requires careful networking configuration if you plan to scan targets outside the container's local bridge network.

Your (Ubuntu, CentOS, Windows Server, macOS?)

Check container logs for errors: docker logs nessus_scanner . Ensure your host firewall allows traffic on port 8834. 2. High Memory Consumption

Plugin compilation is highly resource-intensive. If the container crashes randomly during setup, increase Docker's RAM allocation to at least 8 GB. 🔄 How to Upgrade Nessus in Docker

Bypass the SSL warning (Nessus uses a self-signed certificate by default). Initializing and Compilation

Run the container using non-root privileges when possible.

Routinely pull the latest image to patch underlying OS vulnerabilities. Backup Strategy

Run the container in detached mode. Map port 8834 (the default Nessus web UI port) to your host machine: