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

You're reading from   Hands-On Network Programming with C# and .NET Core Build robust network applications with C# and .NET Core

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Product type Paperback
Published in Mar 2019
Publisher
ISBN-13 9781789340761
Length 488 pages
Edition 1st Edition
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Author (1):
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Sean Burns Sean Burns
Author Profile Icon Sean Burns
Sean Burns
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Table of Contents (26) Chapters Close

Preface 1. Section 1: Foundations of Network Architecture FREE CHAPTER
2. Networks in a Nutshell 3. DNS and Resource Location 4. Communication Protocols 5. Packets and Streams 6. Section 2: Communicating Over Networks
7. Generating Network Requests in C# 8. Streams, Threads, and Asynchronous Data 9. Error Handling over the Wire 10. Section 3: Application Protocols and Connection Handling
11. Sockets and Ports 12. HTTP in .NET 13. FTP and SMTP 14. The Transport Layer - TCP and UDP 15. Section 4: Security, Stability, and Scalability
16. The Internet Protocol 17. Transport Layer Security 18. Authentication and Authorization on Networks 19. Caching Strategies for Distributed Systems 20. Performance Analysis and Monitoring 21. Section 5: Advanced Subjects
22. Pluggable Protocols in .NET Core 23. Network Analysis and Packet Inspection 24. Remote Logins and SSH 25. Other Books You May Enjoy

Securing FTP requests

While you may suspect that the act of providing user credentials to our server meant there was some measure of security involved in our file access, we were actually interacting with our server in an entirely unsecure manner. Those credentials were only of value the moment they were received by the server and our command connection was established. After that though, they provided no more security of the data we were transmitting than if we had allowed entirely anonymous access to our directory. So, let's look at why that is, and how to fix it.

The risks of FTP

With our example software, there isn't any real concern for security because our data is never transmitted over an actual network connection...

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