THE CONTABO BLOG
Server know-how, product
news and hands-on guides
Benchmarks, tutorials and announcements from the team behind your VPS, VDS and
dedicated servers — written for people who actually run the machines.
dedicated servers — written for people who actually run the machines.
Featured posts
Latest articles
Best Open-Source AI Penetration Testing Tools in 2026
In short. AI penetration testing tools use LLM-driven agents to find, validate, and report vulnerabilities faster than manual testing, without the false-positive noise of pure signature-based scanners. Self-hosting…
Best Open-Source AI Agent Frameworks to Self-Host in 2026
In short. An AI agent framework gives an LLM the tools, memory, and control loop to complete multi-step tasks autonomously. Self-hosting one keeps task data on your own…
Best Self-Hosted Knowledge Base Tools in 2026
In short. The best self-hosted knowledge base tools in 2026 span a wide range: NoteDiscovery and Obsidian for personal or lightweight team notes, AppFlowy for a structured Notion…
NoteDiscovery vs Obsidian vs AppFlowy: Which Self-Hosted Notes App in 2026?
In short. Obsidian is the strongest pick for local-first power users who live in a single device and want the deepest plugin ecosystem. NoteDiscovery is the better fit…
What Is an AI Agent Framework? A 2026 Guide for Developers
In short. An AI agent framework is the software layer that gives a large language model tools, memory, and a control loop so it can complete multi-step tasks…
What Is AI Penetration Testing? Tools, Methods, and Self-Hosting
In short. AI penetration testing uses machine learning and LLM-driven agents to automate vulnerability discovery, exploit simulation, and remediation reporting — completing in hours what a manual pentest…
What Is NoteDiscovery? The Self-Hosted Obsidian Alternative
In short. NoteDiscovery is a lightweight, Docker-based, self-hosted knowledge base app inspired by Obsidian. It stores everything as plain Markdown files, ships with a graph view and MCP…
What Is Immich? The Self-Hosted Google Photos Alternative
In short. Immich is an open-source, self-hosted photo and video management platform — a Google Photos alternative that runs entirely on your own server. Released under AGPL-3.0, it…