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.
Linux
Syslog Essentials: Forward Logs & Key Configurations (Practical Guide)
Practical guide to syslog: minimal setup for log forwarding, useful filters, and essential configurations with real examples.
Guix and Nix Packages: Reproducible Builds and Declarative Systems
Short practical guide to Guix and Nix package concepts, benefits, and how to build packages and systems.
Create a Fedora RPM Package: Real Hello World Example
Short practical guide to build a real RPM package on Fedora with a Hello World script.
Create a Debian (.deb) Package: Real Hello World Example
Short practical guide to create a real .deb package containing a Hello World shell script.
Linux Process Prioritization: nice, renice, and Practical Tuning
A short and practical guide to Linux process prioritization with nice, renice, ionice, chrt, and CPU affinity commands.
Storage Technologies in Embedded Systems: NAND, NOR, QSPI, eMMC, SD Card, ROM, RAM, and More
A practical engineer-focused guide to embedded storage technologies including NAND, NOR, QSPI flash, eMMC, SD card, ROM, RAM, EEPROM, and FRAM, with pros and cons, common use cases, and selection advice for real products.
CPU Performance Metrics in Embedded Systems: MIPS, DMIPS, CoreMark, MHz, FLOPS, and What Actually Matters
A practical engineer-friendly guide to CPU and MCU performance metrics in embedded systems. Learn what MHz, MIPS, DMIPS, CoreMark, CoreMark/MHz, and FLOPS really mean, when they help, when they mislead, and how to select the right processor for real workloads.
Communication Protocols and Interfaces Explained: SPI, I2C, UART, USART, CAN, Ethernet, USB, RS-232, RS-485 and More
A practical engineer-friendly guide to communication protocols and interfaces in modern embedded systems, including UART, USART, SPI, I2C, CAN, CAN FD, RS-232, RS-485, USB, Ethernet, LIN, Modbus, and MQTT.
Command Injection in C/C++: Why system() with User Input is Dangerous (with Practical Examples)
A practical, beginner-friendly guide to understanding and preventing command injection vulnerabilities in C/C++ applications, with real-world examples and secure coding advice.