Posted inMySQL
Rescuing MySQL Data: A Hands-On Guide to Handling InnoDB Corruption
MySQL crashed due to InnoDB corruption? Don't panic. Follow this 5-step process using innodb_force_recovery to safely and efficiently recover your data.
Posted inMySQL
Optimizing my.cnf for MySQL 8: Don’t Let Your Server ‘Choke’ on Default Settings
MySQL 8's default configuration is often underpowered. This guide shows you how to optimize my.cnf to maximize RAM and CPU usage for better database load handling.
Posted inCentos
Installing and Configuring Chrony on CentOS Stream 9: Setting Up an NTP Server and Client for Accurate Time Synchronization
Clock drift on servers causes all kinds of problems, from SSL handshake failures to unreliable log forensics. This guide walks you through installing Chrony on CentOS Stream 9, setting up an internal NTP server, and configuring clients to sync against it — complete with a production-ready checklist and an Ansible playbook so you never get a 2 AM wake-up call about server clock drift again.
Posted inDatabase
Analyzing MySQL Slow Query Log with pt-query-digest: Pinpointing the Real Culprit Behind Database Slowdowns
pt-query-digest from Percona Toolkit analyzes MySQL Slow Query Log by grouping and ranking queries by their performance impact. A step-by-step guide: enable logging, install the tool, read the report, and optimize real-world queries.
Posted inMySQL
Optimizing MySQL Pagination for Millions of Rows: Use Seek Method Instead of OFFSET
LIMIT OFFSET is the most common performance trap for MySQL tables with millions of rows — the larger the OFFSET, the more rows MySQL must scan and discard. This article breaks down the root cause and walks through two optimization techniques: Late Row Lookup and the Seek Method (Keyset Pagination), with real benchmark data.
Posted inNetwork
Building a Stealth VPN with Xray-core and XTLS-Reality on Linux: Traffic That Looks Like Regular HTTPS
A complete A-to-Z guide to installing Xray-core with XTLS-Reality on a Linux server — generating keypairs, configuring VLESS, setting up the client, and monitoring. VPN traffic looks like ordinary HTTPS and cannot be detected or blocked by DPI.
Posted inNetwork
Build Your Own Captive Portal with nodogsplash: Professional Public Wi-Fi Control on Linux
Set up a professional Captive Portal on Linux with nodogsplash. Detailed guide on managing Wi-Fi access, limiting users, and customizing splash pages effectively.
Posted inMySQL
MySQL InnoDB Locking: Understanding Row, Gap, and Next-Key Locks to Prevent System Crashes
A deep dive into Row, Gap, and Next-Key Locks in MySQL InnoDB. Real-world experience for preventing deadlocks and optimizing performance for high-scale systems.
Posted inFedora
Optimizing Your Coding Workflow with Fedora Sway Spin: From Installation to Advanced Configuration
Fedora Sway Spin is the perfect choice for developers looking to optimize performance. This guide helps you master Wayland, configure Waybar, and optimize RAM usage.
Posted inUbuntu
Fix Ubuntu GRUB Errors in 5 Minutes with Boot-Repair: Fast, Reliable, and Secure
GRUB menu disappeared after installing Windows? Don't worry. This Boot-Repair guide will help you restore Ubuntu's boot capability in minutes—safely and without data loss.