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Customizing GNOME Desktop on Ubuntu: GNOME Tweaks vs Extensions — Which Is Better for Developers?

By admin June 29, 2026

The default GNOME Desktop on Ubuntu leaves a lot to be desired for developers. This article compares three customization approaches — GNOME Tweaks, Shell Extensions, and dconf — breaks down when to use each, walks through installing 5 essential extensions, and shows how to back up your config with dconf for easy reuse.

Linux

Speed Up Linux: Optimize I/O by Moving ‘Hot’ Data to RAM with tmpfs

By admin June 29, 2026

No matter how fast your disk is, RAM is hundreds of times faster. This guide walks you through using tmpfs to move temporary data into RAM, cut I/O Wait, and instantly speed up your Linux server.

VMware

Handling APD and PDL Errors in VMware vSphere: Understanding and Resolving All Paths Down and Permanent Device Loss

By admin June 28, 2026

APD and PDL are two types of serious storage failures in VMware vSphere that present with similar symptoms but require completely different remediation approaches. This article walks through how to distinguish, diagnose, and resolve each condition using CLI and PowerCLI — based on real-world experience managing an 8-host ESXi cluster.

Fedora

Setting Up Samba Server on Fedora: Secure File Sharing with Windows Using SELinux and firewalld

By admin June 28, 2026

A comparison of Samba, NFS, and SFTP to help you choose the right file sharing option for a Linux-Windows environment. Focuses on installing Samba on Fedora and correctly handling SELinux contexts, booleans, and firewalld to avoid silent Permission denied errors.

Docker

Buildah: Build OCI Container Images Without Docker Daemon — The Rootless Solution for CI/CD

By admin June 28, 2026

Buildah lets you build OCI container images without a Docker daemon, running completely rootless as a regular user. This guide walks through installation, building with a Containerfile or scripted build, and securely integrating Buildah into GitLab CI and GitHub Actions pipelines.

MySQL

Rescuing MySQL Data: A Hands-On Guide to Handling InnoDB Corruption

By admin June 28, 2026

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.

MySQL

Optimizing my.cnf for MySQL 8: Don’t Let Your Server ‘Choke’ on Default Settings

By admin June 28, 2026

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.

Centos

Installing and Configuring Chrony on CentOS Stream 9: Setting Up an NTP Server and Client for Accurate Time Synchronization

By admin June 27, 2026

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.

Database

Analyzing MySQL Slow Query Log with pt-query-digest: Pinpointing the Real Culprit Behind Database Slowdowns

By admin June 27, 2026

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.

MySQL

Optimizing MySQL Pagination for Millions of Rows: Use Seek Method Instead of OFFSET

By admin June 27, 2026

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.

Netdisco: Effortless Network Topology Automation and Switch Port Management

Snapshot Testing with Pytest-snapshot: Stop Struggling with Manual Assertions

Say Goodbye to Passwords: Implementing Magic Links with Node.js and Nodemailer

Securing Python Source Code with PyArmor: Effectively Preventing Reverse Engineering and Protecting Intellectual Property

Feature-Sliced Design (FSD): A ‘Divide and Conquer’ Solution for Large-Scale React Projects

Building Professional CLIs with Node.js and Oclif: From Fragmented Scripts to Standardized Tools

Implementing Circuit Breaker in Python: Don’t Let a Faulty API Crash Your Entire System

Deploying FastNetMon: A Lightweight DDoS Detection Solution via NetFlow/sFlow

3 Pro GraphQL Security Tips: Don’t Hand Hackers the Keys to Your Kingdom

Securing Sudo with 2FA: The Final Defense Against Root Hijacking

Customizing GNOME Desktop on Ubuntu: GNOME Tweaks vs Extensions — Which Is Better for Developers?

Speed Up Linux: Optimize I/O by Moving ‘Hot’ Data to RAM with tmpfs

Handling APD and PDL Errors in VMware vSphere: Understanding and Resolving All Paths Down and Permanent Device Loss

Buildah: Build OCI Container Images Without Docker Daemon — The Rootless Solution for CI/CD

Rescuing MySQL Data: A Hands-On Guide to Handling InnoDB Corruption

Optimizing my.cnf for MySQL 8: Don’t Let Your Server ‘Choke’ on Default Settings

Installing and Configuring Chrony on CentOS Stream 9: Setting Up an NTP Server and Client for Accurate Time Synchronization

Analyzing MySQL Slow Query Log with pt-query-digest: Pinpointing the Real Culprit Behind Database Slowdowns