Packt+ | Advance your knowledge in tech

0

Explore Products

Best Sellers

New Releases

Books

Videos

Audiobooks

Free Learning

Practical Network Scanning

You're reading from Practical Network Scanning Capture network vulnerabilities using standard tools such as Nmap and Nessus

Product type Paperback

Published in May 2018

Publisher

ISBN-13 9781788839235

Length 326 pages

Edition 1st Edition

Languages

SQL

Tools

Nessus

Concepts

Network Security

Author (1):

Ajay Singh Chauhan

View More author details

Table of Contents (15) Chapters

Preface

1. Fundamental Security Concepts

2. Secure Network Design FREE CHAPTER

3. Server-Level Security

4. Cloud Security Design

5. Application Security Design

6. Threat Detection and Response

7. Vulnerability Assessment

8. Remote OS Detection

9. Public Key Infrastructure-SSL

10. Firewall Placement and Detection Techniques

11. VPN and WAN Encryption

12. Summary and Scope of Security Technologies

13. Assessment

14. Other Books you may enjoy

Leave a review - let other readers know what you think

TCP/IP fingerprinting methods supported by Nmap

In the past, the banner grabbing method was used to detect remote operating systems. Telnet Connect used to be sent to a targeted system and the system would display a banner of the operating system running on a host. This was not a very accurate method as the system admin could also disable a banner or change the actual banner in order to misguide attackers.

The new method of remote OS detection is to analyze the packet between the source and destination. This detection technique detects OS platforms and OS versions as well.

TCP/UDP/IP basic

To use an analogy, if IPs are a building address, service ports are flat numbers. Both TCP and UDP uses incoming and outgoing ports for data communication. Most IP-based services use standard ports (HTTP TCP:80, SMTP TCP:25, and DNS TCP-UDP:53).

TCP stack has six flag message types to complete a three-way handshake:

Here is a packet capture for one of the websites I opened on the web browser. This shows a...

The rest of the chapter is locked

Register for a free Packt account to unlock a world of extra content!

A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.

Unlock this book and the full library FREE for 7 days

Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of

Start free trial

Renews at £16.99/month. Cancel anytime

Authors (1)

Singh Chauhan

Singh Chauhan

Ajay Singh Chauhan is an experienced Network and Security Architect and has been working extensively in the IT industry for 15 years. During his career, he has had varied responsibilities, ranging from looking after an entire IT infrastructure to providing network operations, implementation, and network design solutions. Ajay works almost exclusively with large-scale cloud datacenter multi-vendor technologies. He contributes to the Cisco blogging platform by providing IT Professionals with troubleshooting tips and tricks.

See other products by Singh Chauhan

Other recommended products

Related to this chapter

Wireshark 2 Quick Start Guide

Wireshark 2 Quick Start Guide

Wireshark is a powerful tool for network analysis, a combination of Kali Linux and the Metasploit framework. Wireshark is used to analyze the amount of data that flows through a network - it lets you see what's going on in your network. This book takes you from the basics of the Wireshark environment to detecting and resolving network anomalies.

Jun 2018 5h 28m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide

With a CCNA Security certification, you can demonstrate the skills required to develop a security infrastructure, recognize threats to networks, and mitigate security threats. Geared towards Cisco Security, the practical aspects of this book will help you clear the CCNA Security Exam (210-260) by increasing your knowledge of Network Security.

Jun 2018 17h 16m

Personalised recommendations for you

Based on your interests and search pattern

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m