Networking in DevOps | Day 5 | Switching, Routing, Gateway & DNS

Welcome to Day-5 of the Cloud & DevOps Learning Series!

Today we discussed Networking fundamentals and performed Linux networking hands-on commands, which are extremely important for DevOps, Cloud, and Infrastructure Engineers.

Networking is the backbone of:
🔹 Cloud (AWS, Azure, GCP)
🔹 Kubernetes
🔹 Docker
🔹 CI/CD systems
🔹 Server communication
🔹 Load balancers, VPC, Subnets, Firewalls

🧑‍💻 Topics Covered in Day-5
🔹 Networking Concepts

✔ What is Networking?
✔ Switching (Layer 2)
✔ Routing (Layer 3)
✔ Default Gateway
✔ DNS (Domain Name System)
✔ Real-world examples
✔ Why networking is important for DevOps

🔥 Linux Networking Commands (Hands-On)

We performed essential Linux commands used in real servers:

ip link
ip addr
ip addr add
route -n
ip route
ip route add


These are used in:
🔸 Server debugging
🔸 IP assignment
🔸 Routing configuration
🔸 DNS troubleshooting
🔸 Cloud VM networking

🎯 Why DevOps Needs Networking

To understand VPC, Subnets, Route Tables

To troubleshoot pod/container networking

To fix connectivity issues in CI/CD

To manage server communication

To work on cloud firewalls and load balancers

Networking knowledge = Strong DevOps Engineer 💪

🔗 Previous Session (Day-4)
Shell Scripting Hands-On (Beginners + DevOps Engineers)
👉    • Shell Scripting for DevOps in 1 Hour | Day...  

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👨‍💻 About Me

I’m Dnyaneshwar Madake, an AWS Certified Developer Associate with 3.5+ years of experience in:
🔹 DevOps & Cloud Tools
🔹 Python & Django
🔹 Integration

I created this series for beginners, students, and job seekers who want to build strong foundations in Cloud & DevOps.

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