Tag: linux

Disks fail. SMART tells you when. Here's how smartctl and smartd actually predict failure, and the attributes that matter (most don't).

Stop trusting marketing IOPS numbers. fio measures what your disk actually does on your workload — sequential, random, mixed. Here's how to read the output honestly.

Expose Docker's Unix socket over TCP so remote tools and dashboards can connect — daemon.json config for Linux and Windows.

Go beyond basic UFW rules — rate limiting, geo-blocking, application profiles, logging, and before.rules tricks for serious firewall hardening.

awk is perfect for parsing logs. 5 patterns for filtering, summing, counting, splitting fields, and reformatting—no Perl or Python required.

Twenty powerful bash one-liners every sysadmin should know—file ops, process hunting, networking, text processing, disk analysis

Enable GPU acceleration in Chrome and Firefox on Linux with VA-API, Wayland, and WebGPU. Covers the flags and config settings that actually work in 2026.

Control Linux audio volume and mic boost from the terminal with ALSA's amixer — no GUI needed, no remembering cryptic card numbers.

Compile software on Raspberry Pi or cheap VPS with 512MB–2GB RAM. Swap, parallel jobs, ccache, and swappiness tuning make it work.

Build a video slideshow from static images with a voiceover track using FFmpeg — concat filters, fade transitions, and audio sync.

nohup, disown, and & all keep Linux processes alive after logout — but they work differently. Here's which one to reach for, when, and why.

Access services on the host machine from inside a Docker container using host-gateway or host.docker.internal — no hardcoded IPs.