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Virtualization tutorial - IT technology blog

QEMU ARM64 Emulation on Linux: Running Raspberry Pi OS and Android for IoT Development

By admin May 29, 2026

A practical guide to installing QEMU and emulating ARM64 on Linux to run Raspberry Pi OS and Android without real hardware. Covers real-world IoT development workflows: cross-compilation, Docker buildx for ARM64, snapshots, and shared folders.

Network

Layer 4 Load Balancing at Hardware Limits: Deploying IPVS and ipvsadm on Linux

By admin May 29, 2026

Facing Load Balancer bottlenecks under high traffic? Learn to deploy IPVS (IP Virtual Server) on Linux for high-performance Layer 4 load balancing handling millions of packets per second.

Linux

Pinning Processes to CPU Cores: How to Use taskset and numactl to Maximize Linux Performance

By admin May 28, 2026

A guide on using taskset and numactl to pin processes to CPU cores on Linux. Reduce latency, optimize cache locality, and boost performance for heavy applications.

MySQL

MySQL 8 Resource Groups: Don’t Let a “Heavy” Query Crash Your Entire Production System

By admin May 27, 2026

Learn how to use Resource Groups in MySQL 8 to isolate CPU for heavy queries, protecting your production system from server hangs and optimizing user latency.

Linux

Managing Dotfiles with GNU Stow: Don’t Let Reinstalling Your System Be a Nightmare

By admin May 26, 2026

Reinstalling Linux is no longer a nightmare. Discover how to use GNU Stow for professional Dotfiles management, syncing your configurations via Git in just one minute.

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.

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

Installing Windows and Linux Smoothly on Mac with UTM: Free, Fluid, and No Parallels Needed

By admin May 25, 2026

Installing Windows and Linux on M1/M2/M3 Macs has never been easier or more cost-effective. A detailed guide on using UTM as a powerful, free Parallels alternative.

Linux

Mastering systemd-run: ‘Instant’ CPU and RAM Limits for Linux Scripts

By admin May 24, 2026

Don't let backup or crawling scripts crash your server. Learn how to use systemd-run to limit RAM, CPU, and I/O instantly—a must-have tool for SysAdmins.

Linux

Saving RAM on Linux Servers with systemd Socket Activation

By admin May 24, 2026

Learn how to optimize Linux server RAM using systemd Socket Activation. This technique ensures services only start on demand, reducing resource usage and speeding up boot times.