Zero-Touch IoT Fleet Provisioning (WireGuard)
The problem this solves The VPN concentrator pattern covered elsewhere on this site, manually generating a key pair and adding a peer entry per site, works fine for…
Industrial IoT
Multi-Site Industrial IoT Data Aggregation
The problem this solves A single site’s monitoring setup, covered throughout this site’s other guides, doesn’t automatically become a multi-site setup just by repeating it at each location.…
Cold Chain and Asset Monitoring Dashboards
The problem this solves Temperature-sensitive goods, food, pharmaceuticals, certain chemicals, carry real compliance obligations around documented, continuous temperature monitoring, not just a general sense that things stayed cold…
Remote Access to PLCs and Modbus Devices via VPS
The problem this solves A PLC at a remote site needs occasional engineering access (reprogramming, diagnostics) and often continuous data access (a central SCADA or historian polling its…
Building a Modbus-to-MQTT Gateway with a VPS
The problem this solves Modbus is a point-to-point, poll-and-response protocol: one master asks one slave for a specific register value, gets one answer, and that’s the entire interaction.…
VPS as a SCADA VPN Concentrator
The problem this solves Industrial sites are often geographically scattered, on connections you don’t fully control (cellular routers, site broadband of varying quality), running protocols like Modbus and…