Posted inLinux
Boosting Linux Server I/O Performance: noatime and tuned profile Tips
A quick guide to optimizing Linux I/O performance by configuring noatime and using tuned profiles to reduce system latency.
Posted inAI
CLAUDE.md: The “Map” That Helps Claude Code Master Your Project in Seconds
Use CLAUDE.md to give AI a deep understanding of your project, ensure coding style compliance, and work like a Senior Developer. Detailed guide with examples.
Posted inMySQL
MySQL 8: Leveraging Functional and Invisible Indexes to Handle Millions of Records
Discover how to optimize MySQL 8 with Functional and Invisible Indexes. Speed up JSON and date queries while safely testing indexes in production environments.
Posted inMonitoring
Prometheus Blackbox Exporter: Monitor HTTP, DNS, TCP and SSL Certificate Expiry
Prometheus Blackbox Exporter monitors websites, TCP ports, DNS resolution, and SSL certificates from the end-user's perspective — no agent installation required on each server. This guide covers installation, configuring HTTP/DNS/TCP modules, and setting up SSL expiry alerts integrated with Alertmanager.
Posted inVirtualization
Build Your Own Private Cloud at Home with DevStack: A Complete OpenStack All-in-One Guide
A guide to building your own OpenStack Private Cloud system using DevStack on Ubuntu. Focused on practical configuration, hardware requirements, and handling common errors.
Posted inSecurity
Turning Linux into a Database: Querying and Security Monitoring with osquery
Stop struggling with Bash scripts. Learn how to use osquery to query the Linux operating system using SQL, making security monitoring and infrastructure management 10x more efficient.
Posted inMySQL
MySQL 8 CTE: A Professional Solution for Hierarchical Data and Recursive Queries
A detailed guide on using CTE and Recursive CTE in MySQL 8 to efficiently handle hierarchical data, replace complex Self-joins, and optimize query performance.
Posted inMySQL
Migrating MySQL to Amazon RDS and Google Cloud SQL: Real-World Experience from Large Projects
A hands-on guide to migrating MySQL to Amazon RDS and Google Cloud SQL. Includes optimization commands, connection troubleshooting, and tips to avoid downtime.
Posted inGit
Mastering LF/CRLF Issues and Binary File Management with .gitattributes
Don't let LF/CRLF line ending errors ruin your commit logs. Here's a guide to configuring .gitattributes to sync Windows and macOS environments while protecting binary files.
Posted inUbuntu
Forgot Your Ubuntu Password? How to Reset via GRUB & Recovery Mode in 5 Minutes
Forgetting your Ubuntu password is no longer a disaster. Here is a detailed guide on 2 ways to reset your password via GRUB and Recovery Mode, helping you regain control of your server in under 5 minutes.