AWS vs Azure vs GCP – Real Comparison (2025)
AWS vs Azure vs GCP – Real Comparison for 2025Choosing the right cloud platform is one of the biggest decisions for companies, DevOps engineers, and startups. AWS, Azure, and Google Cloud (GCP) together dominate most of the cloud market. But: Which one is actually better? Which is cheaper? Which should you learn in 2025? This article is a real-world comparison based on features, pricing, DevOps, Kubernetes, and job market.
2 February 2025
Cloud vs. On-Premise: Making the Right Infrastructure Choice
Choosing the right infrastructure is one of the most critical decisions for modern organizations. But the big question remains: Cloud or On-Premise? Each has strong advantages depending on your: Budget Compliance & security needs Performance & scaling requirements Growth strategy Let’s break it down with a DevOps & business point of view. What is Cloud Infrastructure? Cloud infrastructure is hosted and managed by a third-party provider such as:
15 January 2024
Top 10 Linux Commands Every DevOps Engineer Must Know in 2024
Linux is the foundation of DevOps infrastructure — from cloud servers and Kubernetes nodes to automation runners. If you want to succeed in DevOps, mastering Linux is non-negotiable. Below are the Top 10 Linux Commands every DevOps engineer must know in 2024, with real-world examples. 1 ls — Display files & directories ls # show files/folders in current directory ls -l # detailed view: permissions + owner + size + date ls -a # show hidden files (starting with .) ls -lh # human readable file sizes` 2 cd — Change directory cd /var/log # move to log directory cd ~ # go to home directory cd - # go to previous working directory cd ../ # go up one level 3 grep — Search in files / outputs grep "error" /var/log/syslog # find word "error" grep -i "failed" auth.log # case-insensitive search grep -R "DATABASE_URL" . # recursive search in folders # Filtering running processes ps aux | grep nginx # find nginx processes 4 cat, less, tail — View file contents cat /etc/os-release # view entire file at once less /var/log/messages # scroll a long file tail -n 100 app.log # last 100 lines tail -f /var/log/nginx/access.log # live log stream for debugging 5 chmod & chown — Permission & ownership chmod +x deploy.sh # give execute permission chmod 600 id_rsa # secure SSH private key # Change ownership to nginx user chown www-data:www-data /var/www/app -R 6 top / htop — System monitoring top # show CPU, memory usage, running processes htop # interactive UI (requires installation) Useful to detect CPU spikes, memory leaks, stuck processes.
13 January 2024
Understanding Linux File Permissions: A Guide to chmod, chown, and chgrp
Managing file permissions is one of the most important skills for Linux and DevOps engineers. Incorrect permissions = broken deployments, security issues, and Permission denied errors. In this guide, you’ll learn: What Linux permissions mean How to read permission notation How to use chmod, chown, and chgrp with real examples What Are Linux File Permissions? Every file in Linux has three types of access:
8 January 2024
Deploying LiveKit on AWS EC2
LiveKit is an open-source platform that provides a modern, end-to-end WebRTC stack for building live video and audio applications. It can handle large-scale deployments and offers built-in load balancing and automatic scaling capabilities. While LiveKit can be deployed on a virtual machine (VM), this approach requires manual scaling and management of system updates. AWS EC2 offers a more efficient solution with automated scaling and built-in security features. Here’s how to deploy LiveKit on AWS EC2:
13 December 2023
Essential Linux Commands
Proficiency in the Linux command line is an invaluable asset. This guide delves deeper into essential commands, empowering you to unlock the full potential of the terminal and optimize your workflow. Navigation & File Management: ls: List directory contents with finesse. Use ls -l for detailed information, including permissions, ownership, and size. ls ls -l pwd: Never lose your bearings. pwd displays your current working directory, allowing seamless navigation. pwd cd: Navigate with precision. cd ~ whisks you home, while cd .. ascends one level in the hierarchy. Advanced users can leverage cd - to return to the previous directory cd mkdir: Create directories with ease. mkdir establishes new directories for optimal file organization. mkdir rmdir: Remove empty directories efficiently. rmdir cleans up your system by removing unused directories. rmdir touch: Create empty files effortlessly. touch helps you mark places for future file creation. touch mv: Move and rename files with confidence. mv allows you to organize your files effectively. mv cp: Duplicate files and directories effortlessly. cp ensures you have backups and facilitates easy organization. cp rm: Use with caution. rm permanently deletes files and directories, so double-check before using it to avoid data loss. rm Advanced File Viewing & Editing:
1 December 2023
Deploying Ghost CMS on AWS Lambda - A Step-by-Step Guide
Hosting Ghost CMS using AWS Fargate: 1. Create a Docker Container for Ghost: Ghost official provides a Docker image. If the default configuration isn’t suitable, you can create a custom Dockerfile, extending the Ghost official image. https://hub.docker.com/_/ghost 2. Push Docker Container to Amazon Elastic Container Registry (ECR): Install and configure the AWS CLI. Create a repository in ECR. Authenticate Docker to the ECR registry: aws ecr get-login-password --region region | docker login --username AWS --password-stdin your-account-id.dkr.ecr.region.amazonaws.com Tag the Ghost Docker image for ECR: docker tag ghost:latest your-account-id.dkr.ecr.region.amazonaws.com/your-repo-name:latest Push the Docker image to ECR: docker push your-account-id.dkr.ecr.region.amazonaws.com/your-repo-name:latest 3. Setup Ghost on AWS Fargate:
4 November 2023