Ultimate SSL Certificate Tutorial & HTTPS Explained Introduction to SSL & HTTPS When users see a padlock 🔒 in their browser, it means the website is using HTTPS secured by an SSL certificate. But what exactly does that mean? Today we will cover all about SSL in this exclusive SSL certificate tutorial. SSL (Secure Sockets…

How to Install Free SSL Certificate on Nginx/Apache (HTTPD) Summary: Install Free SSL Certificate on Nginx/HTTPD  using OpenSSL and Let’s Encrypt 📘 Table of Contents 🧠 Introduction to HTTPS & Free SSL Certificate HTTPS (HyperText Transfer Protocol Secure) encrypts data exchanged between a browser and a server using SSL/TLS certificates. This ensures: Data privacy Authentication…

Hands-on Lab: Quick & Easy Guide to Set Up NGINX Reverse Proxy NGINX reverse proxy is one of the most powerful yet lightweight solutions for managing modern web traffic. Whether you’re hosting microservices, securing APIs, or scaling backend applications, understanding how to configure an NGINX reverse proxy is a must-have skill for developers, DevOps engineers…

Advanced Linux Network Commands for DevOps & SRE Engineers Introduction For DevOps engineers, SREs, and system administrators, network troubleshooting is a critical skill. Whether diagnosing connectivity issues, optimizing performance, securing networks, or debugging service failures, advanced Linux network commands provide deep visibility into network behaviour. This guide covers 50 must-know advanced Linux networking commands, ensuring…

Top 5 JavaScript Errors (and How to Fix Them Like a Pro!) 🚀 Avoid These Costly Mistakes and Debug Your Code Like a JavaScript Ninja! JavaScript is the backbone of modern web development, but let’s be honest – debugging JavaScript errors can be a nightmare! Have you ever been stuck with errors like “Uncaught TypeError:…

How to Fix Kubernetes CrashLoopBackOff A Step-by-Step Troubleshooting Guide Kubernetes is a powerful container orchestration system, but when applications fail to start correctly, it can lead to frustrating errors like CrashLoopBackOff. This issue occurs when a container repeatedly crashes and Kubernetes attempts to restart it but eventually backs off due to multiple failures. In this…

Introduction Encountering a ‘Docker no space left on device’ error while building Docker images? You’re not alone. This issue often occurs due to insufficient disk space, dangling images, or Docker storage misconfigurations. In this guide, we’ll cover why this happens and how to fix it step by step. Why Does This Happen? This error typically…

As a DevOps or Site Reliability Engineer (SRE), we’re often tasked with automating processes, troubleshooting complex systems, and ensuring smooth, continuous integration and deployment. With the powerful AI prompts, we can streamline daily tasks  and workflow to make operations run more efficiently.   Also, knowing hundreds of DevOps tools isn’t enough without a structured problem-solving…

Python in one day is a challenging but possible goal if you focus on the essentials and keep expectations realistic. The key is to grasp the basics and get hands-on practice. Here’s a streamlined plan to help you cover fundamentals and learn Python in just one day: 1. Learn Python – Start with Basic Python…

Java Error: Release Version Not Supported Problem Overview When troubleshooting the error “Java release version not supported,” it’s essential to understand the context and potential solutions. This error typically occurs when Java application targets a specific Java version that is incompatible with the installed Java runtime environment, specially when  running multiple versions of JAVA and…