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

Discovering LAN, IP, and TCP/UDP-Based Attacks

Local Area Networks (LANs), Ethernet protocols, and LAN switching are used to implement layers 1 and 2 and carry information between nodes that are directly attached to the LAN. The Internet Protocol (IP) provides addressing and enables routing protocols to forward packets between end nodes – that is, layer 3. The Transport Control Protocol (TCP) and the User Datagram Protocol (UDP) are the main protocols in Layer 4 that provide connectivity between end processes – for example, a client and a server. In addition to these, there are several other protocols that assist in the proper operations of the network; among them are the Address Resolution Protocol (ARP), which resolves the destination Media Access Control (MAC) address from the destination IP, and the Dynamic Host Configuration Protocol (DHCP), which automatically allocates an IP address, subnet mask, and other parameters to end nodes and other protocols, without which...