🌐 Networking Basics

Understanding networking is essential for designing scalable and reliable systems.

🏷️ DNS (Domain Name System)

• What: Translates human-readable domain names to IP addresses.
• Why: Users access services by name, not IP.
• Tip: Use DNS-based load balancing for redundancy.

🚚 CDN (Content Delivery Network)

• What: Distributes static content closer to users.
• Why: Reduces latency and speeds up content delivery.
• Popular Providers: Cloudflare, Akamai, AWS CloudFront.

📦 TCP/IP Protocol Suite

• TCP: Reliable, ordered, and error-checked delivery.
• UDP: Faster, but no guarantee of delivery or order.
• IP: Handles addressing and routing.

🔒 Security

• TLS/SSL: Encrypts data in transit.
• Firewalls: Protect your network from unauthorized access.

🧠 Final Thoughts

A solid grasp of networking helps you design systems that are fast, secure, and reliable.