RRahulindevopswithrahulsharma.hashnode.dev(Day 22-28) Git & GitHub – Complete Guide for DevOps EngineersWhat is Git? Git is a distributed Version Control System (VCS) used to track changes in files and manage source code efficiently. It helps developers collaborate on projects by maintaining multiple ve4h ago·9 min read
HDHemant Dhavalein90daysofdevops-hemantdhavale-day-10.hashnode.devDay 10 – Understanding File Permissions & Operations in LinuxOn Day 10 of my 90 Days of DevOps journey, I practiced file creation and permissions in Linux. This topic looks simple at first, but it controls everything in a system. Creating Files I created three files: devops.txt using touch notes.txt using ec...Feb 18·2 min read
HDHemant Dhavalein90daysofdevops-hemantdhavale-day-9.hashnode.devDay 09 – Linux User & Group Management (Hands-On Challenge)On Day 09 of my 90 Days of DevOps journey, I practiced something very practical — managing users and groups in Linux. This is something every DevOps engineer deals with in real servers. Creating Users I created four users: tokyo berlin professor ...Feb 17·2 min read
HDHemant Dhavalein90daysofdevops-hemantdhavale-day-8.hashnode.devDay 08 – Deploying My First Cloud Server with NginxToday was one of the most exciting days in my 90 Days of DevOps journey. For the first time, I deployed a real web server on the cloud. Step 1: Launch Cloud Instance I created an EC2 instance on AWS Free Tier. After generating a key pair, I connected...Feb 16·2 min read
HDHemant Dhavalein90daysofdevops-hemantdhavale-day-7.hashnode.devDay 07 – Linux File System Hierarchy & Real-World ScenariosOn Day 07 of my 90 Days of DevOps journey, I focused on understanding where things live in Linux and how to approach real troubleshooting scenarios. Earlier, I used commands.Today, I understood context. Understanding Important Directories Here are th...Feb 14·2 min read
RRahulindevopswithrahulsharma.hashnode.dev(Day 2-7) - Linux Fundamentals for DevOps Engineers: Architecture, File System & Essential CommandsLinux Linux is an open-source operating system (OS) based on Unix principles. It acts as a bridge between computer hardware and software applications, managing system resources like CPU, memory, storage, and devices. It was originally created in 1991...Feb 14·11 min read
HDHemant Dhavalein90daysofdevops-hemantdhavale-day-6.hashnode.devDay 06 – Linux Fundamentals: Read and Write Text FilesOn Day 06 of my 90 Days of DevOps journey, I practiced something very basic but very important — file read and write operations. At first, it feels simple. But in real DevOps work, most things revolve around text files: Logs Configuration files Sc...Feb 14·2 min read
RRahulindevopswithrahulsharma.hashnode.devDay 01 – Introduction to DevOpsDevOps is a combination of development and operation team to deliver the software faster. DevOps is not a tool, technology or framework. It is a software engineer methodology which aims to release the applications very speedily. In software domain we...Feb 13·3 min read
HDHemant Dhavalein90daysofdevops-hemantdhavale-day-5.hashnode.devDay 05 – Linux Troubleshooting Drill (CPU, Memory & Logs)On Day 05 of my 90 Days of DevOps journey, I performed a small troubleshooting drill on my system. Instead of waiting for a real incident, I simulated one and followed a structured approach. Target Service: ssh I chose the ssh service for this drill ...Feb 13·2 min read
SMShashank Malviyainlearnsharegrow.hashnode.devLinux Day 04 – 90DaysOfDevOpsTopic: Processes & Services (systemd) 🔹 Processes (What is running?) Important Commands ps -ef → Snapshot of all running processes pgrep <name> → Find PID of a process top → Live CPU & memory usage htop → (If installed) better interactive top ...Feb 13·2 min read
