Self Hosting
What You Can Self-Host on Oracle Cloud Free Tier (2026)
What actually fits on Oracle Cloud free tier after the June 2026 cut: Ghost, Vaultwarden, Syncthing, monitoring, and a small AI model, sized in real RAM.
Systems Administration
Server management, Linux administration, and infrastructure operations written by a former sysadmin who's been keeping production systems alive since before cloud computing was a marketing term.
Artificial intelligence
The Complete Self-Hosted AI Stack for 2026
Building a local AI server is more than installing Ollama. This guide builds a full production AI stack with Open WebUI, LiteLLM, Qdrant, Traefik, and Langfuse — what each component does, why it's needed, and three complete Docker Compose configurations for beginners, power users, and small teams.
Self Hosting
Self-Host OpenClaw: VPS Setup to Production (2026)
Self-host OpenClaw from zero to production. Server provisioning, SSH lockdown, Docker, reverse proxy, Fail2ban, performance tuning, and full backup strategy in one guide.
Self Hosting
Self-Hosting Prometheus and Grafana: Infrastructure Monitoring That Actually Works
Build a production-grade monitoring stack with Prometheus and Grafana from scratch. Covers architecture, Docker Compose deployment, Node Exporter, alerting with Alertmanager, PromQL from basics to advanced, pre-built dashboards, and everything CoderOasis uses to monitor its own infrastructure.
Self Hosting
Zero Trust Everything: The Complete Guide to Self-Hosting Teleport for Secure Infrastructure Access
CoderOasis runs Teleport internally for everything — admin panel access, secure database connections, Kubernetes, and zero-trust philosophy across our entire team. This is the complete technical guide to installing, configuring, and running your own self-hosted Teleport cluster from scratch.
Self Hosting
How to Self-Host Your Own Email Server With Mailcow in 2026 — Complete Setup Guide
How to Self-Host Your Own Email Server With Mailcow in 2026 — Complete Setup Guide Meta Description: Stop letting Google and Microsoft read your email. This guide sets up a complete private email server with Mailcow on a NetCup VPS — DNS, SPF, DKIM, DMARC, TLS, webmail, and mobile clients.
Self Hosting
The Complete Self-Hosted Productivity Stack: Nextcloud, Vaultwarden, Immich, Jellyfin, and Paperless in 2026
Replace Google Drive, Google Photos, 1Password, Plex, and your document scanner with a self-hosted stack that runs on your hardware. Complete Docker Compose setup with Traefik, Nextcloud, Vaultwarden, Immich, Jellyfin, and Paperless-ngx.
Self Hosting
The Complete 2026 Guide to Running Your Own Minecraft Server (And Not Having It Lag)
Complete 2026 guide: server software selection, Java 26 flags, G1GC tuning with Aikar's Flags, Paper config, pre-generation, Spark profiling, and every setting that actually moves the needle on TPS.
Systems Administration
Bukkit vs Spigot vs Paper: Minecraft Server Guide (2026)
Bukkit, Spigot, Paper, Purpur, Folia — we compare all major server platforms so you pick the right one first.
Systems Administration
How to Debug Minecraft Server Lag with Spark Profiler (2026 Guide)
Your server dropped to 12 TPS. You copied Aikar's flags. You upgraded Java. Nothing changed. That's because JVM flags don't fix plugin bugs. Here's how to find what's actually killing your tick budget.
Software Development
Should You Upgrade Your Minecraft Server from Java 21 to Java 26? Here's my Answer
Every six months, like clockwork, the same question resurfaces in every Minecraft server admin Discord and every r/admincraft thread: "New Java version dropped, should I upgrade?" And every six months, the same two camps form. One side says "just stick with LTS, don't touch
Hardware
The RAMpocalypse! How AI Companies Are Destroying the Hosting Industry and Your Wallet
How AI infrastructure demand is driving up VPS and dedicated server costs — and why your hosting bill is going up even though you haven't changed anything.