Cloud & Networking
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You're reading from  Hands-On Network Programming with C

Product typeBook
Published inMay 2019
Reading LevelIntermediate
PublisherPackt
ISBN-139781789349863
Edition1st Edition
Languages
C
Concepts
Networking
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Author (1)
Lewis Van Winkle
Lewis Van Winkle
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Lewis Van Winkle

Lewis Van Winkle is a software programming consultant, entrepreneur, and founder of a successful IoT company. He has over 20 years of programming experience after publishing his first successful software product at age 12. He has over 15 years of programming experience with the C programming language on a variety of operating systems and platforms. He is active in the open-source community and has published several popular open-source programs and librariesmany of them in C. Today, Lewis spends much of his time consulting, where he loves taking on difficult projects that other programmers have given up on. He specializes in network systems, financial systems, machine learning, and interoperation between different programming languages.
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Chapter 12, Network Monitoring and Security

  1. Which tool would you use to test the reachability of a target system?

The ping tool is useful to test reachability.

  1. Which tool lists the routers to a destination system?

The traceroute (tracert on Windows) tool will show the network path to a target system.

  1. What are raw sockets used for?

Raw sockets allow the programmer to specify directly what goes into a network packet. They provide lower-level access than TCP and UDP sockets, and can be used to implement additional protocols, such as ICMP.

  1. Which tools list the open TCP sockets on your system?

The netstat tool can be used to show open connections on your local system.

  1. What is one of the biggest concerns with security for networked C programs?

When programming networked applications in C, special care must be given to memory safety. Even a small mistake could allow an attacker to compromise your program.

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Hands-On Network Programming with C
Published in: May 2019Publisher: PacktISBN-13: 9781789349863
© 2019 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Lewis Van Winkle

Lewis Van Winkle is a software programming consultant, entrepreneur, and founder of a successful IoT company. He has over 20 years of programming experience after publishing his first successful software product at age 12. He has over 15 years of programming experience with the C programming language on a variety of operating systems and platforms. He is active in the open-source community and has published several popular open-source programs and librariesmany of them in C. Today, Lewis spends much of his time consulting, where he loves taking on difficult projects that other programmers have given up on. He specializes in network systems, financial systems, machine learning, and interoperation between different programming languages.
Read more about Lewis Van Winkle

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