Network Essentials for Web Developers: A Practical Guide to IP, DNS, HTTP, Load Balancers, SSL, and Troubleshooting (Paperback) (ISBN-13: 9798252985084)

"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.

• 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

• 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.