# Network Communication

Network Communication: Network Communication in C#: an overview, IP Addresses and Ports, How to read a URL, Static Websites, Request / Response.

Updated: November 3, 2026

1. [Network Communication in C#: an overview](https://www.ask-codey.com/lessons/network-communication-in-csharp-an-overview) (Novice): Programs talk to each other by sending messages over a network, even when both run on the same computer. Your C# app already does this with SQL Server; a browser does it with a web app.
2. [IP Addresses and Ports](https://www.ask-codey.com/lessons/network-communication-in-csharp-ip-addresses-and-ports) (Novice): An IP address finds the computer, and a port finds the program on it. Meet localhost, the ports the web uses, and the ports your own apps listen on.
3. [How to read a URL](https://www.ask-codey.com/lessons/network-communication-how-to-read-a-url) (Novice): A URL has five parts (protocol, domain name, port, path and query string), and each one tells the web server something about the request.
4. [Static Websites](https://www.ask-codey.com/lessons/network-communication-static-websites) (Apprentice): A static website is built from hand-written HTML files, so the path in a page's URL is the path to that file on the server.
5. [Request / Response](https://www.ask-codey.com/lessons/network-communication-request-response) (Apprentice): The browser sends a request and the server sends back one response, and the server does not remember earlier requests.

Source: https://www.ask-codey.com/courses/csharp-full-stack-bootcamp/topics/csharp-network-communication