Day 2: Create Security Group

🚀 Day 2: Create Security Group in AWS | 100 Days of Cloud (AWS)

Welcome to Day 2 of the 100 Days of Cloud (AWS) series! In this practical lab, we continue our journey into Amazon Web Services by configuring a Security Group—one of the most essential components for securing cloud infrastructure.

As part of their strategic cloud migration, the Nautilus DevOps team is transitioning their infrastructure to AWS using an incremental approach. By breaking large tasks into smaller, manageable units, the team ensures smoother implementation, minimizes disruptions, and optimizes resources while maintaining strong security controls.

📌 Lab Objective:
Create a Security Group within the default VPC to allow secure and controlled access to Nautilus application servers.

🔐 Task Requirements:

Security Group Name: devops-sg
Description: Security group for Nautilus App Servers
VPC: Default VPC
Region: us-east-1

🌐 Inbound Rules Configuration:

HTTP
Port: 80
Source: 0.0.0.0/0 (Allows public web access)
SSH
Port: 22
Source: 0.0.0.0/0 (Allows remote administrative access)

🛠️ What You’ll Learn in This Video:

How to navigate the AWS Management Console
How to create a Security Group in Amazon EC2
Understanding default VPC configurations
Configuring HTTP and SSH inbound rules
Best practices for securing cloud resources
The importance of network security in DevOps workflows

📂 Step-by-Step Guide:

Log in to the AWS Management Console.
Select the us-east-1 region.
Navigate to EC2 Dashboard.
Click Security Groups under Network & Security.
Select Create Security Group.
Enter the required name and description.
Choose the Default VPC.
Add inbound rules for HTTP (80) and SSH (22).
Set the source to 0.0.0.0/0.
Review and create the security group.

🌟 Why This Lab Matters:
Security Groups act as virtual firewalls that control inbound and outbound traffic for AWS resources. Mastering them is essential for any Cloud Engineer, DevOps professional, or Solutions Architect.

🎯 Series: 100 Days of Cloud (AWS)
Follow along as we build real-world expertise in AWS services such as EC2, S3, IAM, VPC, RDS, and more.

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#AWS #CloudComputing #DevOps #AmazonWebServices #EC2 #AWSSecurity #CloudSecurity #Nautilus #100DaysOfCloud #OtterTech #Day2

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