Linux & Server
How-To Guides
Step-by-step guides from certified engineers covering server setup, security hardening, performance tuning and troubleshooting — updated from 2016 to present.
How to Run Stable Diffusion on Ubuntu Server
Install Stable Diffusion WebUI on Ubuntu Server — generate AI images locally with AUTOMATIC1111 or ComfyUI, with and without a GPU.
How to Enable HTTP/3 and QUIC on Nginx
Enable HTTP/3 over QUIC on Nginx — faster connections, especially on mobile and high-latency networks.
How to Fix High CPU Usage on Linux Server
Diagnose and fix high CPU usage on Linux server — identify runaway processes, PHP-FPM issues, MySQL load, malware and misconfigured cron jobs.
How to Set Up MariaDB Galera Cluster for High Availability
Configure a 3-node MariaDB Galera Cluster — synchronous multi-master replication for zero-downtime HA.
How to Optimise WordPress on CloudPanel for Maximum Speed
Tune the full CloudPanel stack for WordPress — PHP-FPM, Redis, Varnish, MariaDB and Nginx together.
How to Test and Verify Server Backups
A backup you have never tested is not a backup — how to regularly verify your server backups are complete, uncorrupted and restorable.
How to Protect Your Server from DDoS Attacks
Multi-layer DDoS protection — Cloudflare rules, Nginx rate limiting, Fail2Ban and kernel SYN flood protection.
How to Set Up PagerDuty Alerts from Linux Server
Integrate Linux server monitoring with PagerDuty for on-call alerting — route critical alerts to the right engineer with escalation policies.
How to Configure Nginx as Reverse Proxy for AI APIs
Configure Nginx as a secure reverse proxy for AI API endpoints — rate limiting, authentication, SSL termination and load balancing for Ollama and LocalAI.
How to Set Up Traefik as Reverse Proxy for Docker
Deploy Traefik as a dynamic reverse proxy for Docker containers — automatic SSL certificates, service discovery and load balancing with zero configuration.
How to Install and Configure PHP 8.3 on CloudPanel
Install PHP 8.3 on CloudPanel with JIT tracing enabled — typed class constants and performance gains.
How to Set Up LEMP Stack on Ubuntu 24.04 LTS
Install a production LEMP stack on Ubuntu 24.04 LTS — Nginx, MariaDB 10.11 and PHP 8.3 with JIT.
How to Set Up Open WebUI for Ollama on Linux
Deploy Open WebUI — a ChatGPT-like interface for Ollama — on your Linux server for a polished browser-based AI chat experience with multi-user support.
How to Debug Nginx and Apache Server Errors
Systematically debug Nginx and Apache server errors — read error logs, interpret status codes, use curl for diagnosis and isolate configuration problems.
How to Set Up Server Monitoring Alerts
Configure server monitoring alerts for CPU, memory, disk and uptime — email and webhook notifications.
How to Configure Redis 7 for WordPress
Set up Redis 7 with WordPress object caching — Unix socket connection, max memory and eviction policy.
How to Harden WordPress on a Production Server
Comprehensive WordPress production hardening — secure wp-config.php, protect wp-admin, disable file editing and configure security headers.
How to Install Ollama on Ubuntu Server
Install Ollama on Ubuntu Server — the easiest way to run Llama 3, Mistral and other LLMs locally with a simple CLI and REST API.
How to Migrate from AWS EC2 to Hetzner Cloud
Migrate from AWS EC2 to Hetzner Cloud — reduce server costs by 70-80% while maintaining performance with a safe step-by-step migration guide.
How to Deploy Applications with Cloudflare Workers
Deploy serverless applications with Cloudflare Workers — run code at 300+ edge locations with zero cold starts for APIs and edge logic.