Network Essentials for Web Developers: A Practical Guide to IP, DNS, HTTP, Load Balancers, SSL, and Troubleshooting

The Networking Book for Web Developers — Not Network Engineers

"It works on localhost but not in production."

If you've ever said that, this book is for you. Network Essentials for Web Developers covers exactly the networking knowledge a web developer needs — from IP addresses and DNS to load balancers, SSL certificates, and debugging 502 errors.

What You'll Learn

• Part 1 — Foundations: IP addresses, subnets, CIDR, ports, TCP/UDP, DNS resolution, HTTP/HTTPS
• Part 2 — Infrastructure: Load balancers, reverse proxies, Nginx, SSL/TLS certificates, CDN and caching
• Part 3 — Troubleshooting: Connection failures, performance debugging, CORS, 502/503/504 errors
• Part 4 — Security: Firewalls, security groups, VPN, web security, authentication and authorization

Who This Book Is For

• Web developers debugging mysterious connection failures
• Junior developers deploying to production for the first time
• Full-stack developers who want to understand what happens between fetch() and the response
• Cloud users configuring VPCs, security groups, and load balancers

Part of the "Essential Knowledge for Web Developers" series. No CCNA required — just enough to debug why your app can't connect.