Network Recon & Topology Mapping - Offensive

NetSentinel is a comprehensive network scanning and visualization tool designed to map, analyze, and display local network topology, open ports, and service findings. It combines fast Go-based scanning utilities with a modern, interactive web visualization powered by Cytoscape.js.

• Network Discovery: Scans the local subnet to identify active hosts, gateways, and devices.
• Port Scanning: Detects open TCP/UDP ports, firewalls, and applies evasion techniques for deeper analysis.
• Service Fingerprinting: Gathers banners and probes HTTP services for directories and endpoints.
• Pathfinding: Calculates optimal and multi-hop routes between hosts.
• Interactive Visualization: Presents network topology, best paths, and direct connections in a beautiful web UI.
• Exportable Results: Saves scan data and visual graphs in structured JSON for further analysis.

• netsentinel-s1.go: Scans the subnet for active hosts.
• netsentinel-s2.go: Scans open ports and applies evasion.
• netsentinel-s3.go: Calculates optimal and multi-hop routes between hosts using.
• netsentinel-s4.go: Converts scan results to Cytoscape graph format.
• cyto.html: Interactive web visualization.
• hosts.json, hosts_scanned.json, hosts-s3.json: Scan and analysis outputs.

1. Scan the Network
   Discovers hosts and saves results to hosts.json.

2. Scan Ports
   Scans open ports, applies evasion, and saves to hosts_scanned.json.

3. Generate Visualization Data
   Converts scan results to Cytoscape format in hosts-s3.json.

4. View the Network
   Open cyto.html in your browser to explore the network graph interactively.

• Go (>=1.18)
• nmap (for port scanning)
• Modern Web Browser (for visualization)
• Cytoscape.js (included via CDN in HTML)

• Visão Geral: Full network topology.
• Melhor Rota: Best multi-hop path (A*).
• Conexões Diretas: Direct host-to-host and port connections.

• Edit Go source files in bin to adjust scanning logic or output formats.
• Modify cyto.html for UI/UX changes or additional visualization features.

Warning: This tool is intended for authorized testing, lab environments, and educational purposes only. Unauthorized scanning or intrusion into networks or devices without explicit permission is illegal and can result in severe penalties. Use responsibly.

This project is licensed under the MIT License.

Developed by JohnnYoru