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

Collection and monitoring methods

Viewing network traffic can be done in several ways, such as the following:

  • Simple Network Management Protocol (SNMP)
  • NetFlow and IP Flow Information Export (IPFIX)
  • Wireshark and network analysis tools
  • Streaming telemetry

Let's look at the information we can get from each one of them.

SNMP

Although considered by some as obsolete, SNMP is still by far the most popular network management tool. SNMP is based on a manager-agent model, where a management system (a manager in SNMP terminology) monitors devices by receiving information from the SNMP agent interacting with the communications device.

There are two ways that the SNMP manager (the management system) receives information from the agent, outlined as follows:

  • SNMP polling: This refers to when the SNMP manager monitors the agents on communication devices.
  • SNMP traps: This refers to when an agent on a communication device discovers a problem, and...