Run RustFS, the Apache-2.0 S3-compatible MinIO alternative, in Docker and Docker Compose with a healthcheck, the web console, aws-cli, boto3 and rclone backups.
Install Grafana Alloy, Loki and Grafana on Debian 12/13 from the Grafana APT repo, ship /var/log files and the systemd journal, and migrate off EOL Promtail.
Install Docker Engine on Ubuntu 26.04 LTS from the official repo: set up the keyring, install Buildx and the Compose plugin, run Docker without sudo, uninstall.
Step-by-step guide to backup and restore k3s: what to save and why, an encrypted off-site backup script, a cron schedule, alerting and a tested restore.
A complete pgBackRest guide for PostgreSQL: install, S3 repos, encryption, full/diff/incr backups, WAL archiving, restore and PITR, with options explained.
Learn OpenTelemetry from scratch: traces, spans, metrics, logs, context propagation, sampling and the Collector, with runnable Python and Docker examples.
Secure a k3s cluster with firewalld and SaltStack on AlmaLinux 10: IP-restricted rich rules, Flannel CNI networking, and automatic orphaned-rule cleanup.
Self-host NetBird, the WireGuard-based mesh VPN, on AlmaLinux 10 behind an existing Caddy reverse proxy, with an embedded IdP, access control and peer DNS.
Coraza WAF with Traefik on k3s Kubernetes: deploy this OWASP firewall as a Traefik WASM plugin to block SQL injection, XSS, and path traversal with no new pods.