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

Information gathering and packet analysis tools

The first step in hacking into a network is to gather information about it. In many cases, connecting your laptop to the network and starting some basic tools will provide you with enough information to move forward. Let's start from the simple and obvious and continue with the tricky ones.

In this category, you have tools divided into four levels:

  • Basic network scanners: Tools for gathering information on devices connected to the network, their IP addresses, MAC addresses, DNS names, open TCP/UDP port basic information, and so on.
  • Network management tools: These are SNMP tools that were created to provide network management, though they can also be used for information gathering. Although communications devices should be configured with passwords (in SNMPv3) or community strings (in SNMPv1/2c), this doesn't always occur. In these cases, you will be surprised by the amount of information we can get from non-protected...