Technical Articles

Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.

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How to test tantalum capacitors for shorts with a multimeter

Learn how to diagnose short-circuited tantalum capacitors on modern boards using only a multimeter. Master safe techniques to isolate faults in power rails.

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Redes•2 min

Network slow? How to find packet loops with Wireshark

Is your network freezing due to broadcast storms? Learn how to use Wireshark and port mirroring to trace and eliminate switching loops in your corporate network.

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Automação•3 min

How to organize PDF files on Linux using the terminal with pdftk

Learn how to automate PDF document management on Linux using pdftk. Fast commands for merging, splitting, and rotating files without graphical interfaces.

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IA•4 min

Google Gemini Omni 1.2 Flash: what changes for long video

Explore the technical innovations of Google Gemini Omni 1.2 Flash, focusing on long video processing and real-time efficiency for developers.

Frontend•4 min

How to create flexible layouts using CSS Flexbox practically

Understand the fundamentals of alignment and space distribution in CSS Flexbox by manipulating main and cross axes to build perfect flexible layouts.

BackendDevOps•4 min

EACCES Error in Node.js? How to Fix Permissions Easily

Learn the basics of operating system user permissions and discover how to resolve blocks when executing scripts or installing Node.js packages.

Redes•6 min

How to test RJ45 network cables with a tester

Learn how to practically use an RJ45 cable tester to map pins and identify physical faults in local area networks quickly.

EletrônicaHardware•4 min

How to measure current with a multimeter safely

Learn how to configure your multimeter for DC current measurements safely. Understand why series measurement is vital and how to prevent board damage.

HardwareDevOps•4 min

How to monitor and limit server power consumption using IPMI

Learn how to monitor electrical telemetry and set power consumption limits on physical servers using IPMI in local infrastructure.

DevOpsHardware•4 min

How to repair corrupted GPT partition tables with gdisk

Learn step by step how to restore corrupted GPT partitions using the gdisk tool on Linux, repairing damaged headers and secondary backups.

Redes•4 min

How to track lost network packets with tcpdump

Learn how to use tcpdump to isolate intermittent communication failures on Linux servers using advanced packet filters.

EletrônicaHardware•5 min

How to test BIOS chip voltage on motherboards with a multimeter

Learn how to identify power delivery failures on motherboards by measuring VCC pins on SPI Flash memory chips using a digital multimeter.

DevOpsBackend•3 min

How to validate JSON schemas in bulk with the AJV CLI

Learn how to ensure data integrity by validating configuration files against JSON schemas automatically and efficiently using the AJV CLI.