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AWS ECS: The Beginner-Friendly Guide to Running Containers in the Cloud

21 July 2025/

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...

How to Access an EC2 Machine in a Private Subnet from Your Local Machine

14 July 2025/

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...

Deploy Containers on AWS Using ECS Fargate Easily

13 July 2025/

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...

AWS Lambda Basics: Run Your First Function Fast

11 July 2025/

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...

AWS VPC: How to Configure Layered Security

8 July 2025/

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...

Top 50 Networking Interview Questions and Answers (With Explanations)

8 July 2025/

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...

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