5posts
A hands-on sysadmin guide to AIDE for file integrity baselines and inotify-tools for real-time filesystem event monitoring: what each tool actually does, install and configuration on Debian, Ubuntu, and RHEL, scheduling the daily check, inotifywait and inotifywatch recipes, the limits that bite, and how the two complement each other.
A sysadmin's hands-on walkthrough of a scratch-based, rootless Docker image for the SimpleX Chat CLI. Since the chat server binds 127.0.0.1 only (issue #6449 is still open), a small socat bridge exposes it on 0.0.0.0. Full multi-stage Dockerfile, build and run commands, and the honest trade-offs.
A practical, sysadmin-grade comparison of Fail2ban and CrowdSec: how each detects and blocks malicious traffic, the architecture that separates them (local log analysis vs community-shared intelligence), real configuration and commands, honest pros and cons, and when to run Fail2ban, CrowdSec, or both.
A practical, sysadmin-grade comparison of Docker and Podman for running many self-hosted apps: Compose vs Quadlet, rootful vs rootless security and host-tool debugging, Watchtower vs podman auto-update, Docker API compatibility, and when Kubernetes is the real answer.
A developer-focused walkthrough of the Systhoughts cron expression playground: build and edit expressions, read plain-English explanations, and inspect next runs on a timeline. Four worked examples, the weekday/dialect/timezone mistakes to avoid, and small challenges to try.