Network Security

Your router is the boundary between your devices and the internet. This module covers a hardening sequence, what a VPN does and does not change, DNS privacy versus integrity, and how WiFi networks get catalogued.

A practical account of building a local AI assistant for Meshtastic, with private configuration, queued TCP access, retrieval tools, and a safer dashboard.

Understand Cloudflare Tunnel vs Access, choose protection for a home dashboard, and avoid publishing a private application without authentication.

Understand T-Mobile 5G Home Internet port-forwarding limits, carrier NAT, and practical options for reaching a home server without a public inbound port.

Find out why Tailscale uses a relay, read status and netcheck output, and decide whether a DERP or peer-relay connection needs troubleshooting.

Flock-You users are reporting zero detections on drives that used to catch cameras every time. Here is what changed in Flock Safety’s hardware, why BLE and the old management AP both stopped working, how the open-source detection community responded, and an emerging infrared-based detection approach that skips WiFi entirely.

How to connect and secure a compact edge-compute node deployed away from a trusted network. Covers cellular, satellite, and LoRa mesh uplinks, VPN tunnel-back architectures, multi-factor authentication, VLAN segmentation, centralized logging, ECC memory, at-rest encryption, and tamper and theft response for field IT.

Flock Finder is an open-source tool that maps 40,000+ Flock Safety ALPR cameras worldwide using WiGLE WiFi data and OUI fingerprinting. Learn how it works, its limitations, and the hardware tools for real-time detection.

A detailed breakdown into the ESP32 WiFi Canary project - a compact, passive 2.4 GHz awareness sensor for the M5Stack Atom Lite that silently watches for evil-twin APs, deauthentication attacks, security downgrades, and beacon floods using a confidence-scored threat model and a single RGB LED.

Comprehensive guide to DagShell custom firmware for Orbic RCL400 hotspot including installation, privacy tools, hacking features, wardriving capabilities, and why it pairs perfectly with RayHunter for mobile security research.