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.
Founder of SudoSecurity. Writes hands-on deep dives across web development, cybersecurity, systems administration, and self-hosting — always with working code.
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.
Ghost Check #1: the Puppet Master hacked minds by exploiting the gap between what a system experiences and what it can verify. Thirty-one years later, a researcher did the same thing to Microsoft 365 Copilot with a single email.
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.
The capstone to our RSA series. The math checks out. Shipping it as written gets you breached. This is the nineteen-year-old attack that proves it, and what belongs in production instead.
Claude Mythos halved HAWK's effective key strength and sped up an AES attack 200-800x. What the math actually shows, and what it doesn't mean yet.
Here's the complete patch-status and lockdown guide, including the systemd hardening, origin validation, env-variable command injection fix, ClawHub skill safety, and how to tell if you've already been hit.
Anthropic shipped Claude Opus 5 today: near-Fable 5 scores, a five-level effort dial, half the price. History says verify the token math before you trust it.
A pull request checkout, a poisoned GitHub Actions cache, and an OIDC token pulled straight out of runner memory. That's how 84 malicious versions of TanStack's packages hit npm in six minutes.
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.
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.
Build a production-grade self-hosted AI agent from scratch using Docker Compose. Covers the full stack — Ollama, n8n, Flowise, Qdrant, SearXNG, Langfuse, and Redis.
Four major open source databases are hitting end-of-life milestones in 2026, and MySQL 8.0 has already crossed that line. Here's a practical, code-first look at how to audit what you're running, back it up properly, and migrate before the risk compounds.