Practical, hands-on tutorials for developers and IT professionals. Step-by-step guides with copy-paste commands, real-world configurations, and battle-tested solutions.
Master U-Boot bootloader commands for embedded Linux. Flash images, configure boot arguments, TFTP boot, environment variables, and troubleshooting.
Master Yocto Project and BitBake commands. Build custom Linux images, create recipes, manage layers, and debug embedded builds with practical examples.
Master Mermaid diagrams for documentation, presentations, and technical specs. Learn flowchart, sequence, class, and Gantt chart syntax with practical examples.
Complete guide to NFS server setup on Linux. Share directories across your network, configure exports, mount shares, and set up NFS root for embedded systems.
Learn how to compact and expand WSL virtual disk files (.vhdx) to reclaim disk space and manage storage efficiently. Step-by-step guide with diskpart commands.
Learn MQTT messaging with Mosquitto broker. Install, configure, publish and subscribe to topics. Essential commands for IoT and real-time applications.
Learn Makefile basics for build automation. Understand targets, dependencies, variables, and patterns. Practical examples for C, Node.js, and general automation.
Complete guide to creating and managing systemd services on Linux. Write service files, enable on boot, check logs, and troubleshoot issues.
Master cURL for API testing. Learn GET, POST, PUT, PATCH, DELETE requests with headers, cookies, JSON payloads, and authentication. Copy-paste examples.
Essential Linux commands for developers and sysadmins. Find files, change permissions, manage disks, create patches, and more with copy-paste examples.
Master essential Git commands: stash changes, reset commits, manage branches, create patches, and fix common issues. Quick reference with copy-paste examples.
Build a production-ready mail server on Ubuntu 18.04+ with Postfix, Dovecot IMAP, Let's Encrypt SSL, SPF, DKIM, and DMARC. Step-by-step guide with copy-paste commands.