Host Your Own AI Agent with OpenClaw - Free 1-Click Setup!
JSON is the data format the web runs on. This guide covers everything from basic syntax rules and data types to parsing, JSON Schema validation, and REST APIs – with code examples throughout.
JSON – A Complete Guide to Syntax and Data Format 2026 Read More »
Blockchain22 Networks has been running production validator nodes on Contabo since 2021 – across the XDC Network and multiple other blockchain ecosystems. Here’s how they do it, what they need from a hosting provider, and why the relationship has held up for five years.
Most n8n workflows work fine in testing. The ones that hold up in production are built differently – with proper error handling, validated inputs, versioned logic, and credentials that aren’t just pasted into node fields. This guide covers 10 practical n8n best practices drawn from real automation experience, plus workflow examples and templates to help you build automations you can actually trust.
10 n8n Best Practices for Reliable Workflow Automation Read More »
Self-hosting OpenClaw gives you control over your AI assistant, but that power comes with security responsibilities. This comprehensive guide walks you through the real risks—from prompt injection attacks to credential theft—and provides a complete security checklist for hardening your OpenClaw deployment on a VPS. Learn how to defend against attacks, isolate with Docker, manage secrets properly, and build safe automations that won’t compromise your infrastructure.
OpenClaw isn’t just a cool open‑source AI toy. It’s a practical way to automate the parts of your business that quietly eat your time: email triage, meeting follow‑ups, client onboarding, content repurposing, and even DevOps checks. This guide walks through real OpenClaw use cases and AI automation examples – from inbox summaries and KPI snapshots to private Ollama-powered assistants – so you can see exactly where an AI agent fits into your daily work instead of guessing.
n8n queue mode transforms a single-instance workflow automation setup into a distributed system capable of handling hundreds of simultaneous executions. This guide walks through the complete configuration process using Docker Compose on a VPS: setting up Redis as the job queue, deploying PostgreSQL for shared state, configuring environment variables across containers, launching the main n8n process, and scaling worker processes that execute workflows in parallel. You’ll learn when queue mode makes sense (100+ executions per hour, long-running workflows blocking other tasks), what server resources you need (minimum 2 CPU cores and 4GB RAM), and how to monitor and scale workers based on actual load. The setup requires Docker knowledge and command-line comfort, but delivers production-grade n8n scalability that grows with your workflow automation demands.
Learn how to automate WordPress with n8n workflows. This guide walks you through setting up API credentials, building automation workflows, and creating practical use cases like AI-generated blog posts, social media sharing, and intelligent content tagging. Save hours every week by automating repetitive WordPress tasks.
OpenClaw is an open-source AI agent that runs entirely on your own infrastructure—whether that’s a home server, Raspberry Pi, or VPS. Unlike ChatGPT and other cloud assistants, it actually executes commands on your system: reading files, managing your calendar, monitoring GitHub repos, and automating workflows through simple chat commands on Telegram or WhatsApp. The entire codebase is public, data stays under your control, and you can customize everything. Setup requires technical skills and infrastructure, but delivers capabilities cloud services legally can’t match. This guide covers how OpenClaw works, compares it to n8n workflow automation and ChatGPT, addresses security considerations, and walks through both local and VPS deployment options for 24/7 operation.
Choosing between SQLite and MySQL? This comprehensive comparison covers architecture differences, performance characteristics, concurrency handling, and when each database makes sense for your project. Whether you’re building mobile apps, web applications, or embedded systems, learn which database fits your requirements.
Apache web server has powered websites for over 25 years. While NGINX overtook it in market share, Apache remains relevant for its flexibility, mature module ecosystem, and LAMP stack compatibility. This guide explains what Apache server actually is, how it processes HTTP/HTTPS requests, its role in web application architecture, and key features. Learn when Apache makes sense for your projects and when alternatives might fit better.
Cloud GPU computing transformed how teams approach AI and machine learning workloads. GPUs excel at parallel processing, cutting neural network training time from weeks to days. This guide covers cloud GPU benefits, challenges like compliance and migration, real-world applications across industries, and infrastructure requirements for maximizing performance.
Choosing between LlamaIndex and LangChain isn’t about picking the “better” framework. LangChain excels at orchestration, agents, and multi-step workflows. LlamaIndex specializes in data retrieval and knowledge management. This guide compares architecture, performance, tooling, and shows how each integrates with n8n for self-hosted AI workflows on your VPS.
LlamaIndex vs LangChain: Which One To Choose In 2026? Read More »
2025 pushed Contabo to rebuild, upgrade, and transform. Hub Europe became our European backbone with state-of-the-art infrastructure and 99.982% uptime. We revamped the entire VPS lineup with more power at the same prices, launched AMD EPYC Turin Dedicated Servers, introduced Auto Backup and 1-click installations for n8n, Nextcloud, and WireGuard. ContaBro joined our support team, the new Customer Control Panel went live, and our Trustpilot score climbed to 4.4. Around 500,000 VPS, 10,000 VDS, and 10,000 Dedicated Servers now run on our infrastructure, serving 150,000 new customers who joined the Contabo family this year.
Contabo Wrapped 2025: The Year of “Always Improving” Read More »
n8n 2.0 focuses on security hardening and reliability improvements that required breaking changes. Task runners now isolate Code node execution, environment variable access is restricted by default, and the new Publish vs Save feature prevents accidental production changes. This guide covers what actually changed, how to check if your workflows need updates using the Migration Report, and why the security improvements matter for self-hosted instances on Contabo infrastructure.
Ollama makes running large language models locally straightforward – no cloud APIs, no per-token billing, no data leaving your infrastructure. Combined with n8n workflow automation, you can build AI-powered systems that run entirely on your own VPS with fixed costs and full control. This guide covers what Ollama does, how to deploy it on a VPS, and practical steps for integrating it with n8n to automate document analysis, customer support, content generation, and more.
