Introduction to TCP/IP and Sockets, part 1: Introducing the protocols and API

This is a basic introduction to the Internet protocols and how to use them in programs using sockets.

This is the first of two introduction videos on the Internet Protocol and its family of associated protocols (UDP, TCP, etc.) as well as Sockets, a pseudo-standard interface made for programmers to write programs which use these protocols.

The slides for this video can be found here: https://tinyurl.com/ybfjnekq


Also check out the part 2 video, where I cover real C++ code examples of this:    • Introduction to TCP/IP and Sockets, part 2...  

Index for skipping to the sections you care about:

00:00 - Introduction
00:33 - Internet Protocol
04:05 - IP fragmentation
05:04 - IP headers
09:14 - IP is "best effort" delivery
10:28 - User Datagram Protocol (UDP)
12:08 - Transmission Control Protocol (TCP)
14:03 - TCP connection states
18:21 - TCP headers
22:08 - Sockets API
23:20 - Connection-oriented socket functions
27:30 - Datagram-oriented socket functions
28:35 - Socket addresses (sockaddr)
29:34 - Socket options (sockopt)
31:21 - Blocking vs. Non-Blocking (fcntl)