"My DevOps Networking Challenge for 90 Days of DevOps."

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DevOps-Challenge/
├── README.md
├── cheatsheets/
│   └── Networking-Commands.md
└── networking/
    ├── osi.md
    └── protocols-ports.md
└── guides/
    └── AWS-Security-Groups.md

Welcome to Week 1 of the 90 Days of DevOps - 2025 Edition! This week focuses on mastering networking concepts, protocols, and practical hands-on tasks. Below are the deliverables and guides for this week’s challenge.

• Learn about OSI and TCP/IP models.
• Write examples of how each layer applies to real-world scenarios.

• Study commonly used protocols and their port numbers.
• Write documentation on the relevance of each protocol.

• Launch an AWS EC2 instance.
• Configure Security Groups and document the steps.

• Practice essential networking commands.
• Create a cheat sheet summarizing each command.

1. OSI & TCP/IP Models

   • Task: Learn and document the OSI and TCP/IP models, and write real-world examples for each layer.
   • Files:
     • osi.md

2. Protocols and Ports for DevOps

   • Task: Study the commonly used protocols and their port numbers, and explain their relevance in DevOps.
   • Files:
     • protocols-ports.md

3. Networking Commands Cheat Sheet

   • Task: Create a cheat sheet for essential networking commands and their practical uses.
   • Files:
     • Networking-Commands.md

4. AWS Security Groups Guide

   • Task: Provides a step-by-step guide to setting up and configuring AWS EC2 Security Groups for secure cloud instances.
   • Files:
     • AWS-Security-Groups.md

These tasks cover the foundational networking knowledge required for setting up secure and efficient DevOps workflows.

Feel free to explore the detailed explanations in the respective files above.

• guides/ - This folder contains the detailed guides and task explanations.
  • AWS-Security-Groups.md - AWS Security Groups configuration guide.
• networking/ - This folder contains Task 1 (OSI) and Task 2 (Protocols and Ports) for Week 1, focused on networking concepts.
• cheatsheets/ - This folder contains networking command cheat sheets.

Thank you for visiting! 🚀