Book Image

Network Protocols for Security Professionals

By : Yoram Orzach, Deepanshu Khanna
5 (1)
Book Image

Network Protocols for Security Professionals

5 (1)
By: Yoram Orzach, Deepanshu Khanna

Overview of this book

With the increased demand for computer systems and the ever-evolving internet, network security now plays an even bigger role in securing IT infrastructures against attacks. Equipped with the knowledge of how to find vulnerabilities and infiltrate organizations through their networks, you’ll be able to think like a hacker and safeguard your organization’s network and networking devices. Network Protocols for Security Professionals will show you how. This comprehensive guide gradually increases in complexity, taking you from the basics to advanced concepts. Starting with the structure of data network protocols, devices, and breaches, you’ll become familiar with attacking tools and scripts that take advantage of these breaches. Once you’ve covered the basics, you’ll learn about attacks that target networks and network devices. Your learning journey will get more exciting as you perform eavesdropping, learn data analysis, and use behavior analysis for network forensics. As you progress, you’ll develop a thorough understanding of network protocols and how to use methods and tools you learned in the previous parts to attack and protect these protocols. By the end of this network security book, you’ll be well versed in network protocol security and security countermeasures to protect network protocols.
Table of Contents (23 chapters)
1
Part 1: Protecting the Network – Technologies, Protocols, Vulnerabilities, and Tools
7
Part 2: Network, Network Devices, and Traffic Analysis-Based Attacks
12
Part 3: Network Protocols – How to Attack and How to Protect

IP Telephony and Collaboration Services Security

In the previous chapters, we learned about network protocols, databases, applications connecting protocols such as LAN, IP, SMB, and TCP/UDP, and their common attacks. This chapter talks about a completely different network protocol called the IP telephony protocol or in other words Voice over IP (VoIP).

VoIP technology came about in the mid '90s when the cost of calling was very high. Researchers developed an idea to take calling a step further and switch to internet-based calling, and then the technology named VoIP came into existence.

This chapter starts with an explanation of the VoIP protocol – the VoIP architecture, VoIP protocols such as Session Initiation Protocol (SIP) and Real-Time Transport Protocol (RTP), and so on. We will look at the VoIP packets in the network, the structure of VoIP, and how to perform VoIP network penetration testing.

In this chapter, we will cover the following main topics:

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