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ScyllaDB: Revolutionizing Write-Heavy System Performance as a Cassandra Alternative

By IT From Zero May 10, 2026

Tired of Cassandra's latency? ScyllaDB is a high-speed C++ rewrite that eliminates Garbage Collection overhead to achieve maximum write performance. Explore our setup and optimization guide.

Fedora

Turn Fedora Server into a Pro Router: Optimizing NFTables and Kea DHCP

By IT From Zero May 10, 2026

A guide on turning Fedora Server into a professional router. Use NFTables for high-speed firewalling and Kea DHCP for modern local network management.

Database

DuckDB: SQLite for Analytics – Master the Art of Processing Tens of GBs Smoothly on Your Laptop

By IT From Zero May 10, 2026

Discover DuckDB – the perfect alternative to Pandas for large-scale data processing on local machines. Learn how to query massive CSV/Parquet files directly and pick up practical performance optimization tips.

Python

uv: The Blazing Fast Python Package Manager – Goodbye Pip and Poetry?

By IT From Zero May 10, 2026

uv is a Rust-based Python package manager with extraordinary speed. Discover how uv serves as a perfect replacement for pip, poetry, and pyenv in Python project management.

Development

Build “Surreal” Desktop Apps: How Tauri and React Ended Electron’s RAM Nightmare

By IT From Zero May 10, 2026

Forget about desktop apps consuming gigabytes of RAM. Discover how to combine Tauri, React, and Rust to build ultra-lightweight, high-performance, and secure applications.

Database

Sysbench: How to Measure Real-World Load for MySQL and PostgreSQL (Not Just Theory)

By IT From Zero May 10, 2026

A detailed guide on using sysbench to benchmark MySQL and PostgreSQL performance through three stages: Prepare, Run, and Cleanup. Learn how to interpret TPS and Latency metrics to identify database bottlenecks.

Centos

Optimizing PHP 8.x on CentOS Stream 9: Real-World PHP-FPM and OPcache Tuning Tips

By IT From Zero May 9, 2026

A guide to optimizing PHP 8.x on CentOS Stream 9 based on real-world experience. Learn how to fine-tune PHP-FPM and OPcache for peak performance, lower CPU load, and reduced RAM usage.

Virtualization

Deploying MicroVMs with Firecracker: When Virtual Machines Are Lightweight and Boot in a Flash

By IT From Zero May 9, 2026

A guide to deploying Firecracker MicroVMs on Linux—AWS's ultra-lightweight virtual machine solution. Boot in just 125ms with minimal resource consumption, ideal for Serverless.

Linux

Debug Linux like a “Wizard” with eBPF and BCC Tools: Peer into the Kernel Without Code Changes

By IT From Zero May 9, 2026

Learn how to use eBPF and BCC Tools on Linux to debug complex performance issues at the kernel level without modifying or restarting your applications.

MySQL

Optimizing MySQL 8 with EXPLAIN ANALYZE: Don’t Let the Optimizer Mislead You

By IT From Zero May 9, 2026

Don't let the MySQL Optimizer mislead you with predicted numbers. Learn how to use EXPLAIN ANALYZE to accurately measure every millisecond of execution and optimize queries effectively.

ESXi Host Configuration Backup and Restore with PowerCLI and ESXCLI: Saving Your Virtualization Cluster During Outages

Guide to VFIO PCIe Passthrough on Linux KVM: GPU Passthrough for Windows VMs

Integrating OpenTelemetry into Python: Practical Microservices Monitoring Strategies

MySQL Group Replication Tutorial: Building an Auto-Failover InnoDB Cluster

OpenSCAP Guide for Linux: Automated Scanning and CIS Benchmark Remediation

A Guide to Configuring Table Partitioning in MySQL: Boosting Large Table Performance with RANGE and LIST

How to Install and Configure Fail2ban on Linux: Block SSH and Web Server Brute-Force Attacks

Configuring kdump on Fedora Server: Capturing Kernel Panics and Analyzing Crash Dumps

Kokoro-TTS Setup and Usage Guide: Building an Offline AI Text-to-Speech System on Linux

Real-Time File Synchronization on CentOS Stream 9 with Lsyncd and Rsync: A Production-Grade Setup

ScyllaDB: Revolutionizing Write-Heavy System Performance as a Cassandra Alternative

Turn Fedora Server into a Pro Router: Optimizing NFTables and Kea DHCP

DuckDB: SQLite for Analytics – Master the Art of Processing Tens of GBs Smoothly on Your Laptop

uv: The Blazing Fast Python Package Manager – Goodbye Pip and Poetry?

Build “Surreal” Desktop Apps: How Tauri and React Ended Electron’s RAM Nightmare

Sysbench: How to Measure Real-World Load for MySQL and PostgreSQL (Not Just Theory)

Optimizing PHP 8.x on CentOS Stream 9: Real-World PHP-FPM and OPcache Tuning Tips

Deploying MicroVMs with Firecracker: When Virtual Machines Are Lightweight and Boot in a Flash

Debug Linux like a “Wizard” with eBPF and BCC Tools: Peer into the Kernel Without Code Changes

Optimizing MySQL 8 with EXPLAIN ANALYZE: Don’t Let the Optimizer Mislead You