Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.
Learn how to secure your Ubuntu server by configuring UFW practically. Discover how to open essential ports and block unwanted access.
Learn how to use native Linux commands like free and top to analyze real RAM consumption, cache, and swap on servers efficiently.
Learn how to configure advanced firewall rules in UFW and integrate them with system logs to mitigate intrusion attempts on remote servers.
Learn how to transform raw Nginx logs into structured JSON using native tools like awk and jq, preparing data for ELK platforms.
Learn how to turn massive CSV files into lightweight SQLite databases directly from the command line using native tools. Gain speed and run complex SQL queries without freezing your computer.
Learn how to diagnose and isolate corrupted blocks on NVMe and SATA storage drives using direct smartctl commands in Linux without data loss.
Learn step by step how to install and configure a dedicated DNS server with Pi-hole in your homelab to eliminate ads, trackers, and speed up local network browsing.
Learn how to extract health and storage temperature metrics on Linux using smartctl to prevent thermal throttling.
Learn step by step how to rescue data from a corrupted or bad sector drive on Linux using the robust ddrescue tool.
Learn how to secure your network edge against automated IP scans and intrusion attempts by combining the fail2ban log monitor with the modern nftables firewall.
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