📈 Understanding Horizontal and Vertical Scaling

🔹 1. Horizontal Scaling

Horizontal scaling means adding more servers or instances instead of increasing the resources of a single machine.

🔹 2. Vertical Scaling

Vertical scaling means increasing the resources of an existing server.

⚖️ Load Balancing in AWS

A load balancer distributes incoming traffic among multiple servers.

🌐 1. Application Load Balancer (ALB)

✅ Features

• Distributes web traffic

• Supports microservices architecture

• Content-based routing

🎯 Use Cases

• Web applications

• REST APIs

• Microservices

🚀 2. Network Load Balancer (NLB)

✅ Features

• High-speed traffic handling

• Low latency

• Supports UDP protocol

🎯 Use Cases

• Gaming applications

• Real-time applications

🛡️ 3. Gateway Load Balancer (GWLB)

✅ Features

• Traffic inspection

• Secure networking

• Horizontal scaling support

🔧 Creating an Application Load Balancer

📌 Step 1: Open EC2 Dashboard

📌 Step 2: Create Load Balancer

📌 Step 3: Configure Listener

📌 Step 4: Create Target Group

📌 Step 5: Register Targets

📌 Step 6: Create Load Balancer

🐙 Git and GitHub Basics

🌍 Public Repository

🔒 Private Repository

🔄 Git Workflow

📂 Creating a Repository on GitHub

📝 Step 1: Create Repository

⚙️ Step 2: Configure Repository

🚀 Step 3: Create Repository

💻 Installing Git on Linux

📥 Install Git

✔️ Verify Installation

🔨 Initialize a Git Repository

⚙️ Configure Git User Details

☁️ Uploading a Project to GitHub

➕ Add Files

📊 Check Status

💾 Commit Changes

🌿 Create Main Branch

🚀 Push Code to GitHub

📥 Cloning a Repository

🎯 Creating a Target Group in AWS

📌 Target Group Configuration

💽 Checking Disk Space in Linux

📦 Listing Block Devices

☁️ Adding Additional Storage in AWS EC2

📌 Step 1: Create Volume

📌 Step 2: Select Availability Zone

📌 Step 3: Attach Volume

🛠️ Formatting the New Volume

📁 Creating a Mount Directory

🔗 Mounting the Volume

🔹 Unmounting a Volume in Linux

Unmounting removes the mounted filesystem from the directory structure without deleting data.

Why Unmount?

• Safely detach storage devices

• Prevent data corruption

• Required before removing AWS EBS volumes

Check Mounted Volumes

Unmount the Volume

Verify Unmount

The mounted directory should no longer appear in the output.

🎯 Conclusion

Linux administration and DevOps concepts such as scaling, load balancing, Git version control, AWS target groups, and storage management are fundamental skills for cloud engineers and DevOps professionals.

By understanding these concepts and practicing the commands covered in this article, you can build a strong foundation in Linux, AWS, and modern infrastructure management.🎯 Conclusion

Linux, AWS, Git, and storage management are essential skills for every DevOps engineer. By understanding scaling strategies, load balancing, version control, and storage administration, you build a strong foundation for managing modern cloud infrastructure efficiently.

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