Practical articles on AI, DevOps, Cloud, Linux, and infrastructure engineering.
Build a real disk-cleanup script step by step. Learn variables, conditionals, loops, error handling, and the safety preamble that prevents foot-guns.
We started using eBPF tooling for ad-hoc production debugging six months ago. Three real incidents where it cut investigation time from hours to minutes.
Three production OOM incidents that taught us how kubelet, containerd, and the kernel actually decide which process dies. With debugging commands you'll wish you had earlier.
Step-by-step debugging of a production Linux server hitting 100% CPU. From top to perf to the actual fix.
A practical systemd drop-in guide built from a real operations problem: vendor unit files kept changing, but the team still needed consistent restart, environment, and logging behavior.
A practical systemd reliability guide for Linux services, built around repeated restart-loop incidents and the unit-file patterns that finally made those services boring.
A production-tested Linux patch management workflow for teams that need security fixes without turning every maintenance window into a gamble.
A container is a process with extra kernel features applied. Walking through namespaces, cgroups, and the actual mechanics — the level of detail that makes "container weirdness" debuggable.
We have a few hundred shell scripts in production. The patterns that make them survive contact with reality, and the ones we've stopped writing.
Filesystem choice, mount options, IO schedulers — the per-host tweaks that actually moved disk performance for our database and storage workloads.
How processes actually live and die on Linux, the tools that show what's happening, and the patterns we use for monitoring service health.
A practical Linux hardening checklist for production hosts. The settings that earn their place via real production reasons, not the cargo-cult version.
