Host Your Own AI Agent with OpenClaw - Free 1-Click Setup!
Every Linux process inherits a set of environment variables from its parent. These key-value pairs control how shells behave, where programs look for executables, and which configuration a running application picks up. Get them wrong and your deployment breaks at 2 AM. Get them right and you’ve got a clean, portable system config that travels […]
How to Set and List Environment Variables in Linux Read More »
You’ve got a backup script. It works when you run it by hand. Now you need it to run at 2 AM every night without you babysitting the terminal. That’s where cron comes in, and getting the crontab syntax right is the difference between a script that fires on schedule and one that silently does
Crontab Syntax on Linux: A Practical Guide For 2026 Read More »
You’ve downloaded a .zip file to your server. Now what? On most Linux systems, double-clicking isn’t an option. The unzip command is how you crack open zip archives from the terminal, and unlike tar or gzip, it doesn’t come pre-installed on every distro. That distinction matters. Plenty of sysadmins SSH into a fresh VPS, type
Linux Unzip Command: Extract Zip Files With Examples Read More »
Every sysadmin hits the same wall eventually: you’ve got 400 config files, one wrong IP address in all of them, and exactly zero interest in opening each one by hand. That’s where the sed command earns its keep. The Linux sed command (short for stream editor) lets you find, replace, insert, and delete text in
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.
You click on a site and get a white page with “Error 522: Connection timed out.” Your origin server is alive, your code hasn’t changed, and nothing in your deploy pipeline looks wrong. Yet Cloudflare insists it can’t reach your box. Error 522 is an HTTP status code specific to Cloudflare. It fires when Cloudflare’s
How to Fix Error 522: Causes and Step-by-Step Solutions Read More »
You click a link. Chrome throws ERR_CONNECTION_RESET at your face. No page, no data, just a terse error code on a white screen. The browser tried to talk to the server, the server hung up mid-sentence, and now you’re stuck. This err_connection_reset error means the TCP connection between your browser and the remote server was
Your site’s down. Server’s fine. Hosting account is active. Nothing in the error logs. Nine times out of ten, a misconfigured DNS A record is the culprit. This guide covers checking your A record, verifying it matches your hosting IP, and fixing domain pointing when things break. What Is a DNS A Record A DNS
How to Check a DNS A Record and Fix Domain Pointing Read More »
You click a link. Instead of a webpage, you get a white screen and a terse message: 502 Bad Gateway. No explanation, no useful context. Just a number, a label, and the vague feeling that something between you and the server went sideways. A 502 bad gateway error means one server tried to talk to
You click submit on a form. The page throws a 405 Method Not Allowed error. No stack trace, no useful hint, just a flat refusal from your server. Welcome to one of the more annoying HTTP error codes. The HTTP 405 status code tells you one specific thing: the server found the resource, understood your
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.
Your WordPress site is slow. You’ve tried every caching plugin, optimized images until they’re practically abstract art, and the page still loads like it’s 2005. The problem isn’t WordPress. It’s what sits underneath it. The VPS you’re running, the virtualization tech it uses, the web server sitting in front of PHP – these are the
How to Optimize WordPress on a VPS with KVM and OpenLiteSpeed Read More »
Learn to port forward your Minecraft server in 5 steps. Configure IP, firewall, and router settings to enable multiplayer gaming.
Minecraft Server Port Forwarding: Complete Setup Guide Read More »
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.
