This is Lesson 1 of a foundational series on port and protocol programming using Go.

In this introductory lesson, we start from first principles—no frameworks, no shortcuts. You will learn how real network protocols are designed, how to read and understand RFC documents, and how to translate RFC specifications into working Go code.

We focus on:
• How ports actually work at the protocol level
• What an RFC really is (and how engineers use it)
• How to extract requirements from an RFC
• How to design protocol logic before writing code
• How to implement simple, standards-compliant network programs in Go

This lesson is ideal for developers who want to understand networking the traditional way, the same way early internet protocols were built—while still using a modern language like Go.

By the end, you won’t just use protocols—you’ll understand how to build them.