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Introduction: Why Should You Care About ECS? If you've been exploring the DevOps world, you've probably heard about containers and Docker. These technologies have revolutionized how we package and deploy applications. But running containers at scale? That's where AWS Elastic Container Service (ECS) comes in. ECS is Amazon's managed container orchestration service that...

Introduction Ever noticed the little padlock icon in your browser's address bar when you visit websites like your bank or an online store? That tiny symbol represents a powerful security mechanism that keeps your data safe while traveling across the internet. Behind that padlock is something called an SSL/TLS certificate. In today's digital...

Understanding CPU Credits: The Lifeline of Burstable Instances If you're using AWS's T-series instances like T2, T3, or T4g, you've opted for what AWS calls "burstable performance instances." These cost-effective options operate on a CPU credit system that can sometimes feel like managing a bank account—you earn credits when your usage is low...

Introduction Working with AWS, you'll often encounter EC2 instances tucked away in private subnets. This architecture follows security best practices by isolating critical resources from direct internet access, but it creates a challenge: how do you access these instances from your local machine? Whether you need to perform maintenance, troubleshoot issues, or deploy...

Introduction Containers have become the backbone of modern application delivery, but running and scaling container clusters can still feel like heavy lifting—especially if you’re also responsible for patching EC2 hosts, managing auto‑scaling groups, and worrying about kernel versions. AWS Fargate solves that problem by letting you launch Amazon ECS tasks without provisioning or...

Introduction Serverless computing is completely changing how developers build and distribute applications. One of the most popular and efficient serverless cloud solutions for running code without worrying about server administration is AWS Lambda. In this blog we will explore what AWS Lambda is, Key benefits, how to create Lambda Functions and common use...

Introduction Ever wondered how companies like Netflix or Amazon push code updates multiple times a day without breaking everything? The secret sauce is a robust CI/CD pipeline. If you're looking to level up your DevOps game in 2025, understanding AWS CI/CD is non-negotiable. In this guide, we'll break down AWS CI/CD pipelines in...

The Cloud Career Crossroads: Making Your 2025 Platform Choice The cloud computing landscape has transformed dramatically over the past decade, and as we navigate through 2025, choosing which cloud platform to master has become a career-defining decision. Whether you're just starting your cloud journey or looking to pivot your existing skills, understanding the...

Introduction  In the current digital environment, the significance of a secure cloud infrastructure is important. As companies move to the cloud, securing their assets inside a Virtual Private Cloud (VPC) is essential. AWS offers a range of tools and best practices to establish layered security within a VPC, protecting applications and data from...

Introduction Preparing for a networking interview can be overwhelming, especially with the vast range of topics to cover. Whether you're a seasoned professional or just starting your IT career, mastering these top 50 networking questions will help you confidently tackle technical interviews. At DevOps Horizon, we've compiled the most common and crucial networking...