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Hands-On Network Programming with C

You're reading from   Hands-On Network Programming with C Learn socket programming in C and write secure and optimized network code

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Product type Paperback
Published in May 2019
Publisher Packt
ISBN-13 9781789349863
Length 478 pages
Edition 1st Edition
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Author (1):
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Lewis Van Winkle Lewis Van Winkle
Author Profile Icon Lewis Van Winkle
Lewis Van Winkle
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Table of Contents (25) Chapters Close

Preface 1. Section 1 - Getting Started with Network Programming FREE CHAPTER
2. Introducing Networks and Protocols 3. Getting to Grips with Socket APIs 4. An In-Depth Overview of TCP Connections 5. Establishing UDP Connections 6. Hostname Resolution and DNS 7. Section 2 - An Overview of Application Layer Protocols
8. Building a Simple Web Client 9. Building a Simple Web Server 10. Making Your Program Send Email 11. Section 3 - Understanding Encrypted Protocols and OpenSSL
12. Loading Secure Web Pages with HTTPS and OpenSSL 13. Implementing a Secure Web Server 14. Establishing SSH Connections with libssh 15. Section 4 - Odds and Ends
16. Network Monitoring and Security 17. Socket Programming Tips and Pitfalls 18. Web Programming for the Internet of Things 19. Answers to Questions 20. Setting Up Your C Compiler on Windows 21. Setting Up Your C Compiler on Linux 22. Setting Up Your C Compiler on macOS 23. Example Programs 24. Other Book You May Enjoy

What's your address?

You can find your IP address using the ipconfig command on Windows, or the ifconfig command on Unix-based systems (such as Linux and macOS).

Using the ipconfig command from Windows PowerShell looks like this:

In this example, you can find that the IPv4 address is listed under Ethernet adapter Ethernet0. Your system may have more network adapters, and each will have its own IP address. We can tell that this computer is on a local network because the IP address, 192.168.182.133, is in the private IP address range.

On Unix-based systems, we use either the ifconfig or ip addr commands. The ifconfig command is the old way and is now deprecated on some systems. The ip addr command is the new way, but not all systems support it yet.

Using the ifconfig command from a macOS terminal looks like this:

The IPv4 address is listed next...

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