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

Configuring TLS in .NET Core

While we've explored the nature of the interactions between hosts that want to establish secure communications in depth, we've kept the discussion to a fairly high level so far. There's a reason for this, though. In .NET Core, you'll never be coding the specific steps of the TLS protocol directly. As a high-level language executed on a portable runtime, .NET Core is not the ideal environment for attempting to implement those operations on your own. And, as you have probably already figured out, the ASP.NET Core libraries that are used to facilitate low-level socket interactions between hosts already implement TLS for us. We just have to know how to configure it and enforce its use. So, while the step-by-step interactions of TLS are important for any network engineer to understand, the low-level details are well beyond the scope...