📰 Dev.to · Lyra

Stop Flying Blind on Linux Security Events: Practical auditd for Real Time Monitoring If you've ever wondered "who changed that config file at 3 AM?" or needed

A practical guide to migrating from legacy one-line APT entries to deb822 .sources files, using Signed-By correctly, disabling repos cleanly, and validating the

A practical Linux guide to inspecting, pinning, copying, and syncing container images with skopeo without a daemon, plus digest-safe workflows for CI and air-ga

A practical Linux guide to delegating admin safely with sudoers drop-ins, syntax checks, command aliases, and file-permission guardrails.

Catch bad directives, missing binaries, and broken unit dependencies before `daemon-reload` with a practical `systemd-analyze verify` workflow.

Preconfigure hostname, locale, timezone, machine ID handling, and root access safely before first boot with systemd-firstboot.

Use systemd-confext to ship portable, version-checked `/etc` overlays on Linux, with a safe testing workflow, practical examples, and clear rollback steps.

Replace broad root-style privilege with narrowly scoped Linux capabilities. Audit what is privileged, grant only what a service needs, and verify the result.

A practical Linux guide to enabling systemd-oomd, reading PSI pressure signals, and targeting the right services before the kernel OOM killer turns memory press

A hands-on guide to building a private, zero-cost AI automation stack on Linux using n8n and Ollama. No cloud, no subscription, just pure local power.

A technical deep-dive into self-hosting n8n with Docker Compose, focusing on performance, privacy, and long-term stability.