NetAlertX
Centralized network visibility and continuous asset discovery. Monitor devices, detect change, and stay aware across distributed networks.
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Open-source network visibility & asset intelligence framework with Docker deployment, 80+ notifications, and Home Assistant integration.
Core Features
- Discovery & Asset Intelligence: ARP-scan, Pi-hole, UNIFI, SNMP router, DHCP leases; continuous monitoring for unauthorized assets and IP drift
- 80+ Notification Gateways: Apprise integration (Telegram, Pushover, NTFY, etc.) plus native Pushsafer/Pushover publishers
- Integrations & Plugins: Home Assistant support, API endpoints, Webhooks, and a plugin system allowing custom scanners in 15 minutes
- Workflows: Automate device categorization, auto-group by vendor, unarchive on detection, or auto-delete to enforce IT governance
What It Can't Do
- •Recent docker-compose changes require careful migration; read the official guide. 2. Use --network=host for proper LAN scanning. 3. Data stays local by default; notifications send data externally if configured. 4. For VLANs/remote subnets, ensure container network access. 5. Create config and db folders under the data volume before first run.
Use Cases
- Home Network Monitoring: Know every device online, detect intruders or misbehaving IoT gadgets
- Enterprise Compliance: Identify Shadow IT, prevent unauthorized hardware, automate device lifecycle management
- Multi-site Operations: Centralized view across VLANs and remote subnets, unified asset repository
NetAlertX provides a centralized "Source of Truth" (NSoT) for network infrastructure. Maintain a real-time inventory of every connected device, identify Shadow IT and unauthorized hardware to maintain regulatory compliance, and automate compliance workflows across distributed sites. It bridges the gap between simple network scanning and complex SIEM tools, offering actionable insights without heavy overhead. Supports multiple discovery methods (ARP-scan, Pi-hole, UNIFI, SNMP routers, DHCP leases), 80+ notification gateways via Apprise, Home Assistant integration, custom plugin development, and automated workflows for device categorization, cleanup, and policy enforcement.
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Getting Started
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Install the software
Double-click the downloaded installer and follow the prompts
1. Install Docker on your system (Windows/Mac/Linux)
2. Run: docker run -d --network=host --restart unless-stopped -v /your_data_dir:/data -v /etc/localtime:/etc/localtime:ro --tmpfs /tmp:uid=20211,gid=20211,mode=1700 -e PORT=20211 -e APP_CONF_OVERRIDE='{"GRAPHQL_PORT":"20214"}' ghcr.io/netalertx/netalertx:latest
3. Open http://localhost:20211 and follow the setup wizard
- 1. Install Docker on your system (Windows/Mac/Linux)
- 2. Run: docker run -d --network=host --restart unless-stopped -v /your_data_dir:/data -v /etc/localtime:/etc/localtime:ro --tmpfs /tmp:uid=20211,gid=20211,mode=1700 -e PORT=20211 -e APP_CONF_OVERRIDE='{"GRAPHQL_PORT":"20214"}' ghcr.io/netalertx/netalertx:latest
- 3. Open http://localhost:20211 and follow the setup wizard
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Stop and remove the container: docker stop <container_name> && docker rm <container_name>. Delete the data directory: rm -rf /your_data_dir (backup first).
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