VPS know-how & server operations
Tutorials, optimization and server operations for developers and sysadmins. Practical, concise, and well-sourced.
How to change the default SSH port on a VPS
A practical guide to moving SSH off port 22 on a Linux VPS: why it matters, how to edit sshd_config safely, how to update firewall and SELinux, and how to avoid locking yourself out.
How to connect to a Linux VPS over SSH for the first time
Hướng dẫn từng bước kết nối VPS Linux lần đầu qua SSH, tạo key pair, phân quyền đúng và bảo mật ngay từ giây đầu tiên.
Install a GoGetSSL certificate on NGINX
Step-by-step guide to install a GoGetSSL SSL certificate on NGINX. Covers CSR generation, certificate installation, SSL configuration, and verification on a Linux VPS.
Install a Let's Encrypt SSL on a VPS with Certbot
Hướng dẫn cài chứng chỉ Let's Encrypt SSL miễn phí trên VPS bằng Certbot: cài đặt, cấu hình tự động gia hạn, kiểm tra chứng chỉ. Dành cho quản trị viên VPS
Set up Nginx as a reverse proxy on Ubuntu 24.04
Hướng dẫn cấu hình Nginx làm reverse proxy trên VPS Ubuntu 24.04, kèm các bước kiểm tra, xử lý lỗi và tối ưu cho production.
Install WordPress on a LiteSpeed VPS in 2026
Step-by-step guide to install WordPress on a LiteSpeed VPS: install LiteSpeed, PHP 8.3, MariaDB, configure LSCache and secure the site.
How to Install n8n on a VPS with Docker in 2026
This post shows step-by-step how to install n8n on a VPS with Docker, run it behind Nginx with HTTPS, and back up workflows and credentials.
Install Docker Compose on a Linux VPS in 2026
A practical walkthrough for installing Docker Compose v2 on an Ubuntu 24.04 VPS, with verified commands, path configuration, and troubleshooting for developers and sysadmins.
Install Docker on an Ubuntu VPS
A practical walkthrough of installing Docker Engine and Docker Compose v2 on an Ubuntu 24.04 VPS: prerequisites, apt repo setup, first containers, and what to verify.
Run stable diffusion image generation on a high spec VPS
Set up Stable Diffusion on a high-spec Linux VPS and generate images through a web UI or API. Covers GPU alternatives, driver setup, model choice, and serving prompts over HTTP.
AI log analysis and anomaly detection on a Linux VPS
A practical guide to AI log analysis and anomaly detection on a Linux VPS, covering tooling, pipeline patterns, and how to keep it running on modest hardware.
Build a no-code AI workflow with Flowise on a VPS
Hướng dẫn dựng luồng AI không code với Flowise trên VPS: cài đặt, cấu hình, kết nối model và triển khai chatbot thực tế. Phù hợp developer muốn tự chủ hạ tầng AI.
Self-host an API speech to text with Whisper on a VPS
Build a private, cost-effective speech-to-text API with faster-whisper on a Debian 12 VPS. Covers setup, systemd service, and a reliable Python endpoint.