Guides
Practical step-by-step tutorials on Windows, server setup, web development, AI integration, and custom software — written by engineers who build production systems every day.
Step-by-step guide to installing and configuring OpenClaw on an Ubuntu EC2 instance on AWS — from launching the instance to running your first agent.
A complete guide to installing OpenClaw on DigitalOcean — choosing the right Droplet size, configuring the firewall, installing dependencies, and keeping the agent running.
A reverse proxy lets Nginx sit in front of your Node.js, Python, or any app running on a local port and serve it securely on port 80/443 with SSL. This guide covers the full setup.
PM2 is the standard process manager for Node.js in production. This guide covers installation, starting apps, auto-restart on crash, cluster mode for multi-core CPUs, log management, and startup on reboot.
A fresh Ubuntu server is open by default. This guide covers the essential first steps: creating a sudo user, disabling root SSH, configuring UFW, setting up fail2ban, and hardening SSH.
Deploy your Next.js application to a production Ubuntu server — build it, run it with PM2, serve it through Nginx with SSL, and set up automatic deployments.
Install PostgreSQL on Ubuntu, create your first database and user, configure remote access, and secure it for production use.
Install Docker Engine on Ubuntu from the official Docker repository — not the outdated snap or apt package. This guide covers installation, post-install setup, and running your first container.
Package your Node.js app into a Docker container — write a production-ready Dockerfile, build the image, run it locally, and push it to Docker Hub or a private registry.
Docker Compose lets you define and run multi-container apps (app server + database + Redis + etc.) with a single command. This guide covers writing a compose file, common service patterns, and production tips.
GitHub Actions automates your test, build, and deploy pipeline on every push. This guide covers writing your first workflow, running tests on PRs, building Docker images, and deploying to a server.
Redis is an in-memory data store used for caching, sessions, rate limiting, and queues. This guide covers installation, basic data structures, connecting from Node.js, and production configuration.
The essential Linux commands for developers — navigating files, permissions, processes, logs, networking, and text manipulation. A practical reference, not a textbook.
Cron is the standard Linux scheduler for running commands at set intervals. This guide covers crontab syntax, common schedules, best practices for reliable cron jobs, and debugging when they fail.
Swap space prevents your server from running out of memory and crashing. This guide covers creating a swap file, sizing it correctly, making it permanent across reboots, and tuning swappiness.
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