Book Image

Hands-On Network Programming with C# and .NET Core

By : Sean Burns
Book Image

Hands-On Network Programming with C# and .NET Core

By: Sean Burns

Overview of this book

The C# language and the .NET Core application framework provide the tools and patterns required to make the discipline of network programming as intuitive and enjoyable as any other aspect of C# programming. With the help of this book, you will discover how the C# language and the .NET Core framework make this possible. The book begins by introducing the core concepts of network programming, and what distinguishes this field of programming from other disciplines. After this, you will gain insights into concepts such as transport protocols, sockets and ports, and remote data streams, which will provide you with a holistic understanding of how network software fits into larger distributed systems. The book will also explore the intricacies of how network software is implemented in a more explicit context, by covering sockets, connection strategies such as Transmission Control Protocol (TCP) and User Datagram Protocol (UDP), asynchronous processing, and threads. You will then be able to work through code examples for TCP servers, web APIs served over HTTP, and a Secure Shell (SSH) client. By the end of this book, you will have a good understanding of the Open Systems Interconnection (OSI) network stack, the various communication protocols for that stack, and the skills that are essential to implement those protocols using the C# programming language and the .NET Core framework.
Table of Contents (26 chapters)
Free Chapter
Section 1: Foundations of Network Architecture
Section 2: Communicating Over Networks
Section 3: Application Protocols and Connection Handling
Section 4: Security, Stability, and Scalability
Section 5: Advanced Subjects


In this chapter, we took an extremely close look at IP, first discerning precisely why IP, as a network layer protocol, was unique from the transport layer protocols that we've examined before it and then learning about the functions and use of IP through its origin. We looked at when the split was made between the transport layer responsibilities of TCP and the network layer responsibilities of what eventually became IP. In doing so, we established clear boundaries on the scope of IP and what functions it is meant to provide, and what functions fall outside its scope.

Once we established the scope and intent of IP, we looked closely at how it has evolved over the years. Starting with IPv4, we learned about the addressing scheme, how it came to be, and how it is used by network software to uniquely identify hosts on a network. We learned about the common mechanisms...