Networking Fundamentals for Developers

Code That Connects-Master the Backbone of the Internet.
Whether you're building web apps, APIs, or distributed systems, understanding how data moves across the internet is essential. Networking Fundamentals for Developers is the hands-on guide that bridges the gap between theory and code-teaching you how TCP/IP, HTTP, DNS, and sockets really work by building them from scratch.

Tailored for software developers, this book dives into the core concepts of networking and shows how they apply directly to real-world programming tasks. You'll go beyond the textbook and actually build servers, write socket-based clients, parse HTTP headers, and debug low-level packet flows-all with code in your favorite languages like Python, JavaScript, or Go.

No fluff. Just practical, developer-centric explanations that make networking click.

• How the TCP/IP stack works and how packets travel between hosts

• Writing TCP and UDP socket programs from the ground up

• Understanding the HTTP protocol, headers, methods, and status codes

• How DNS, IP addresses, and ports function under the hood

• Debugging traffic using tools like Wireshark and cURL

• How modern applications use WebSockets, HTTPS, and REST APIs

• Backend and full-stack developers

• DevOps engineers and SREs

• Computer science students and bootcamp grads

• Anyone writing code that runs over the internet