NetVisor

NetVisor enables automatic discovery and visual documentation of network topology. This powerful tool scans networks, identifies hosts and services, and generates interactive visualizations to illustrate how every component connects. It streamlines the process of creating and maintaining network documentation, making network management more accessible and efficient.

Features

• Interactive Visualization: Automatically generates a visual representation of network topology, allowing for easier navigation and understanding of network connections.

• Discovery Process: NetVisor utilizes a daemon that scans your network to detect all active hosts and running services. Through a straightforward interface, users can initiate network discovery and see results in real-time.

• Network Organization: The tool allows for logical segmentation of the network by creating subnets and groups, enabling users to organize and manage network elements effectively.

• Flexible Architecture: The server-daemon model supports scanning from multiple hosts, which is key for mapping complex VLANs and diverse network topologies.

Architecture Overview

NetVisor comprises two main components:

1. Server: Acts as the central hub, storing network data and generating visualizations via a web user interface (UI). It is designed to run within a Docker container using a SQLite database.
2. Daemon: A lightweight agent responsible for network scanning, which can be deployed on multiple hosts to provide comprehensive coverage of different network segments.

Customization Options

• Users can customize the visualization: alter anchor points, adjust subnet sizes, and reorganize the layout to suit different organizational needs.
• The daemon supports various configuration methods, including command-line arguments, environment variables, and configuration files, adding flexibility for users during setup.

Supported Services

NetVisor automatically detects over 50 common services, including:

• Media Servers: Plex, Jellyfin
• Home Automation: Home Assistant
• Virtualization: Docker, Kubernetes
• Network Services: Pi-hole, pfSense

For a complete list, refer to the service definitions list.

In summary, NetVisor is a comprehensive solution for network visualization and management, designed to adapt to evolving network structures with minimal effort.