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- Best Practices & Patterns, Linux Basics, Package Management, System Administration
- March 2, 2015
Migration Guide: CentOS 7 to Rocky Linux or AlmaLinux (Production Servers)

To maintain a secure and supported environment, organizations should migrate CentOS 7 servers to a supported enterprise Linux OS. Rocky Linux and AlmaLinux have emerged as the leading community-driven successors to CentOS, providing binary-compatible replacements for Red Hat Enterprise Linux (RHEL) without licensing costs.
- Best Practices & Patterns, Linux Basics, Package Management, System Administration
- November 22, 2014
Upgrading Ubuntu 22.04 LTS to Ubuntu 24.04 LTS: Step-by-Step Guide

Upgrading from Ubuntu 22.04 LTS to 24.04 LTS necessitates preparation, ensuring data backups and app compatibility. The guide outlines both GUI and CLI methods, emphasizing careful execution to minimize downtime and maintain system integrity during the upgrade.
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- Best Practices & Patterns, CI/CD Pipelines, Configuration Management, DevOps Tools
- August 5, 2014
Configuration Management in Linux

Configuration management automates Linux system setups, ensuring consistency, reducing errors, and streamlining infrastructure using tools like Ansible, Puppet, and SaltStack.

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Complete Guide to Personalized Email Campaigns with Node.js and TypeScript 0
- CI/CD Pipelines, Cloud Platforms, Configuration Management, Linux Basics, Shell Scripting, Troubleshooting
- February 4, 2026
Build a Production-Ready Email Campaign System with Modern JavaScript While Python excels at scripting, Node.js offers superior performance for I/O-heavy operations like email sending, especially when handling thousands of recipients. This guide provides a complete, production-ready email campaign system using TypeScript, Node.js, and modern best practices. Why Node.js for Email Campaigns? Project Structure Installation &
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Complete Guide: Integrating M-Pesa STK Push (Lipa na M-Pesa Online) with Node.js and TypeScript 0
- Best Practices & Patterns, CI/CD Pipelines, Configuration Management, Containers & Docker, DevOps Tools, Job Automation, Web Servers
- February 4, 2026
In this comprehensive guide, I’ll walk you through integrating M-Pesa’s Lipa na M-Pesa Online (STK Push) using Node.js with TypeScript. We’ll build a production-ready, type-safe API with proper error handling, security, and best practices. Why TypeScript for M-Pesa Integration? TypeScript adds type safety to your M-Pesa integration, helping you: Project Overview We’ll build a complete
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Integrating M-Pesa STK Push (Lipa na M-Pesa Online) in Node.js 0
- AI, Best Practices & Patterns, CI/CD Pipelines, Cloud Platforms, Job Automation, Security & Hardening, Web Servers
- February 4, 2026
In this tutorial, I’ll walk you through integrating M-Pesa’s Lipa na M-Pesa Online (STK Push) into your Node.js backend. This guide covers everything from setup to implementation with a clear folder structure. Prerequisites Before we begin, ensure you have: Project Structure Step 1: Initialize Project Create a new directory and initialize your Node.js project: Step
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The Complete Guide to Postman: Mastering API Development and Testing 0
- CI/CD Pipelines, DevOps Tools, Linux Basics
- January 17, 2026
Introduction to Postman Postman is a comprehensive API platform that simplifies every aspect of the API lifecycle. Originally launched as a Chrome extension in 2012, it has evolved into a powerful desktop application used by over 20 million developers worldwide. Postman provides tools for designing, testing, documenting, and monitoring APIs, making it an essential platform
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The Complete Guide to cURL Command: Mastering HTTP Requests from Command Line 0
- CI/CD Pipelines, Cloud Platforms, Configuration Management, DevOps Tools, Linux Basics, Networking, Shell Scripting, System Administration
- January 17, 2026
Introduction to cURL cURL (Client URL) is a command-line tool and library for transferring data with URLs. First released in 1997, it has become the standard for making HTTP requests from terminal environments across all operating systems. cURL supports a wide range of protocols including HTTP, HTTPS, FTP, SFTP, SCP, and many others, making it
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Consuming a REST API with Python: A Complete Command-Line CRUD Tutorial 0
- Best Practices & Patterns, Configuration Management, DevOps Tools, Infrastructure as Code, Linux Basics, Shell Scripting, Web Servers
- January 15, 2026
In this comprehensive tutorial, we’ll learn how to consume a REST API using Python entirely from the command line. We’ll build a complete project covering all CRUD operations using the free JSONPlaceholder API. Project Overview Folder Structure Step 1: Project Setup First, create the project structure: Step 2: Install Dependencies Edit requirements.txt: Install the dependencies:
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