You're reading from Nmap Network Exploration and Security Auditing Cookbook, Third Edition Network discovery and security scanning at your fingertips

Product type Paperback

Published in Sep 2021

Publisher Packt

ISBN-13 9781838649357

Length 436 pages

Edition 3rd Edition

Languages

C++

Tools

Nmap

Concepts

Network Security

Author (1):

Paulino Calderon

View More author details

Table of Contents (22) Chapters

Preface

1. Chapter 1: Nmap Fundamentals

2. Chapter 2: Getting Familiar with Nmap's Family FREE CHAPTER

3. Chapter 3: Network Scanning

4. Chapter 4: Reconnaissance Tasks

5. Chapter 5: Scanning Web Servers

6. Chapter 6: Scanning Databases

7. Chapter 7: Scanning Mail Servers

8. Chapter 8: Scanning Windows Systems

9. Chapter 9: Scanning ICS/SCADA Systems

10. Chapter 10: Scanning Mainframes

11. Chapter 11: Optimizing Scans

12. Chapter 12: Generating Scan Reports

13. Chapter 13: Writing Your Own NSE Scripts

14. Chapter 14: Exploiting Vulnerabilities with the Nmap Scripting Engine

15. Other Books You May Enjoy

Appendix A: HTTP, HTTP Pipelining, and Web Crawling Configuration Options

HTTP user agent

1. Appendix Β: Brute-Force Password Auditing Options

Brute modes

2. Appendix C: NSE Debugging

3. Appendix D: Additional Output Options

4. Appendix Ε: Introduction to Lua

5. Appendix F: References and Additional Reading

Why subscribe?

Finding domain controllers

DCs are the most critical systems in Microsoft Windows networks using AD technology. They control all the machines in the network and host essential services for the organization's operations, such as DNS resolution. During a black-box penetration test, attackers need to locate these critical systems to examine them for possible vulnerabilities.

This recipe shows how to find the DCs on the network with Nmap.

How to do it...

Open your terminal and enter the following Nmap command to find DCs on your network:

$ nmap -p389 -sV <target>

DCs will show port 389 running the Microsoft Windows AD LDAP service:

PORT  STATE SERVICE VERSION
389/tcp open    ldap  Microsoft Windows AD LDAP (Domain:TESTDOMAIN, Site: TEST)

How it works...

Penetration testers often need to locate the DCs on networks as they are the most important systems that, if vulnerable, will give access to any machine that is...