Smart TV Remote Control APIs: How to Discover and Control TVs Over Wi-Fi
A practical developer guide to discovering and controlling smart TVs over Wi-Fi: SSDP, mDNS, smart-TV APIs, Philips JointSpace, and a simple web remote architecture.
Networking
D-Bus vs gRPC vs MQTT: A Practical Guide to Choosing the Right Communication Pattern
A practical comparison of D-Bus, gRPC, and MQTT: communication models, strengths and limits, real-world use cases, runnable examples, and a decision guide for Linux, embedded, and distributed systems.
SSH Reverse Tunnel: Expose a Private Linux Machine Behind NAT
Simple, practical guide to SSH reverse tunnels: how they work, when to use them, and the exact Linux commands to expose a private machine behind NAT.
Network Protocols Explained: TCP, UDP, DNS, HTTP, HTTPS, FTP, SSH, SCP, NTP, SMTP, POP3, IMAP, SNMP, MQTT and More
A practical guide to the most common network protocols: TCP, UDP, IP, DNS, HTTP, HTTPS, FTP, SSH, SCP, NTP, SMTP, POP3, IMAP, SNMP, DHCP, MQTT, and the port numbers and real-world use cases behind them.
Pi-hole on Raspberry Pi with Docker: Network-Wide DNS Ad Blocker Setup Guide
Complete practical guide to running Pi-hole on Raspberry Pi using Docker: Docker Engine installation, compose configuration, router DHCP setup, and network-wide ad blocking for all devices including IoT endpoints.
MQTT Protocol: A Practical Guide with Code Examples, Libraries, and Real-World Use Cases
A practical guide to MQTT protocol for embedded systems and IoT. Learn how MQTT works, QoS levels, retained messages, libraries in C/Python/JavaScript/Go, and real-world use cases with code examples.
SNMP in Linux: Practical Setup, Secure Defaults, and Useful Commands
A short practical guide to SNMP on Linux: what it is, when to use it, secure SNMPv3 setup, useful commands, and troubleshooting.
Linux NTP: Practical Settings and Usage
A short practical guide to configure NTP on Linux using chrony, systemd-timesyncd, and ntpd, with simple verification and troubleshooting steps.
What Is a Reverse Proxy? A Simple Beginner Guide with Docker and Nginx
A beginner-friendly explanation of reverse proxy, with a local Docker Compose and Nginx example using a configurable .env file.
NMEA 2000 Implementation: Address Claim, Heartbeat, and Alarm Messages
Practical implementation guide for NMEA 2000: address claim messages, heartbeat behavior, and standard PGN alarm publishing.