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Development tutorial - IT technology blog

Deploying SvelteKit to Cloudflare Pages: High-Speed Full-Stack Web at Zero Cost

By admin May 26, 2026

Build and deploy full-stack SvelteKit apps to Cloudflare Pages lightning fast. Optimize performance with Edge SSR and enjoy zero infrastructure costs.

Python

Automating Excel with Python and Openpyxl: From Formatting to Workbook Security

By admin May 26, 2026

Stop being an Excel 'slave' with Openpyxl. A guide from cell formatting and charting to file security. Run scripts in 15 seconds instead of 4 hours of manual work for 50 branches.

Network

NetFlow and IPFIX: Monitoring Network Bandwidth with nfdump and nfsen on Linux

By admin May 26, 2026

Identify the IP consuming 90% of your network bandwidth in just 30 seconds. A detailed guide on deploying nfdump and nfsen for NetFlow/IPFIX monitoring on Linux based on real-world experience.

Ubuntu

Installing Jellyfin on Ubuntu: Build Your Own ‘Personal Netflix’ 100% Free

By admin May 26, 2026

Build your own home media system like Netflix using Jellyfin on Ubuntu. A step-by-step guide from installation to hardware optimization, completely free.

Artificial Intelligence tutorial - IT technology blog

Build Your Own Lightweight Offline TTS System on Linux with Piper and Python

By admin May 26, 2026

Say goodbye to thousand-dollar Cloud TTS bills. Discover how to deploy Piper on Linux for a high-speed, secure, and self-hosted text-to-speech system that runs smoothly even on a Raspberry Pi.

Fedora

Setting Up OpenSSH Server on Fedora: SSH Keys, sshd_config Hardening, and firewalld Integration

By admin May 25, 2026

A practical guide to installing and hardening OpenSSH Server on Fedora: key-based authentication (ED25519), disabling password auth, configuring sshd_config via drop-in files, and integrating firewalld with zone management. The standard workflow for production and development server environments.

Monitoring

Self-Hosting SigNoz with Docker: The Open-Source APM Alternative to Datadog

By admin May 25, 2026

Prometheus + Grafana are great at tracking metrics, but they won't help you correlate traces and logs when debugging. Self-hosted SigNoz solves this by consolidating Metrics, Traces, and Logs into a single interface, built on OpenTelemetry and ClickHouse — completely free, lighter than ELK, and straightforward to deploy with Docker Compose.

Network

How to Deploy a Mesh VPN with Nebula: Securely Connect Thousands of Servers from Slack

By admin May 25, 2026

Nebula is an open-source mesh VPN from Slack that enables peer-to-peer connections between thousands of servers without a relay, encrypted via the Noise Protocol. This guide covers installation, lighthouse configuration, group-based access control, and real-world connectivity testing on Linux.

Virtualization

Apache CloudStack: A Lightweight Private Cloud Alternative to OpenStack

By admin May 25, 2026

Tired of OpenStack's complexity? Discover how to build a Private Cloud with Apache CloudStack—a lightweight, easy-to-manage IaaS solution for enterprises.

Fedora

Mastering Toolbox on Fedora: How to Create Isolated and Professional Dev Environments

By admin May 25, 2026

Toolbox is a solution that helps developers create isolated development environments on Fedora quickly. Learn how to keep your system clean and avoid library conflicts.