Complete Ethical Hacking Course > Ethical Hacking Phases

Nmap Scanning Methods - Part 1

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TCP connect() scanning [-sT] and SYN scanning (also known as half-open, or stealth scanning) [-sS] are the two most common scan types in Nmap.

  • Download the installer.
  • Run the installer.
  • Open NMap/Zenmap.
  • Enter the target address.
  • Download the installer.
  • Run the installer.
  • Open NMap/Zenmap.
  • Enter the target address.
  • Choose a profile.
  • Click Scan.
  • Review the results.
  • Choose a profile.
  • Click Scan.
  • Review the results.
    • #BBD0E0 »

    A method of discovering whether ports on a network are open and could be receiving or delivering data is known as port scanning. It's also a method of sending packets to certain ports on a host and analysing the answers to find flaws.

    Nmap offers multiple scanning methods, each with its own strengths and weaknesses. There are three main types of scans:

    • Host discovery scans rely on sending TCP packets to every IP address in the target range.
    • Service discovery scans use ARP requests to determine which IP addresses are reachable by the target's gateway.
    • OS detection scans send ICMP echo requests to the target IP addresses in order to determine what operating system is running on each host.

    Nmap is a network traffic scanning tool that improves on earlier network auditing tools to perform speedy and thorough scans of network traffic. It operates by identifying active hosts and IPs on a network using IP packets, then analysing these packets to offer information on each host and IP, as well as the operating systems they are running.

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    Course Content

    1. Introduction to Ethical Hacking
      7m 23s

    1. Overview of Ethical Hacking
      9m 5s
    2. Key Terminologies - Part 1
      14m 4s
    3. Key Terminologies - Part 2
      11m 52s
    4. Key Terminologies - Part 3
      5m 42s
    5. Key Terminologies - Part 4
      10m 16s
    6. Common Cyber Attacks
      22m 26s
    7. Operating System Cyber Attacks
      23m 6s
    8. Types of Hackers
      18m 57s
    9. Introduction to Linux & Kernel
      6m 38s
    10. File Securing Techniques
      24m 29s
    11. Setting up a Hacking Lab using Kali Linux - Part 1
      12m 15s
    12. Setting up a Hacking Lab using Kali Linux - Part 2
      22m 52s
    13. Setting up a Hacking Lab using Metasploit
      18m 13s
    14. Basic Linux commands in Linux
      12m 7s
    15. File commands in Linux
      18m 56s
    16. Folder commands in Linux
      16m 10s
    17. Shell commands in Linux
      14m 42s
    18. Linux Directories
      13m 27s
    19. Assignment : Introduction to Ethical Hacking
      2m 24s

    1. Key Terminologies in Ethical Hacking
      11m 47s
    2. Overview of Vulnerabilities
      4m 31s
    3. Phases of Ethical Hacking
      8m 53s
    4. Introduction to Footprinting
      21m 49s
    5. Eavesdropping Attack
      6m 19s
    6. Overview of Nmap
      20m 34s
    7. Nmap Scanning Methods - Part 1
      28m 33s
    8. Nmap Scanning Methods - Part 2
      32m 14s
    9. Assignment : Ethical Hacking Phases
      2m 47s

    1. Internet Assigned Numbers Authority
      15m 7s
    2. Introduction to IP Addressing
      13m 31s
    3. IPv4 Addresses
      15m 22s
    4. IPv6 Addresses
      7m 12s
    5. IP Address Detection
      7m 19s
    6. Ping Requests and Ping Sweep
      30m 15s
    7. Traceroute
      4m 47s
    8. Common Nmap Commands - Part 1
      15m 47s
    9. Common Nmap Commands - Part 2
      4m 55s
    10. ARP Spoofing Overview
      10m 30s
    11. ARP Spoofing Demo
      16m 23s
    12. IP Spoofing Overview
      4m 50s
    13. IP Spoofing Demo
      9m 41s
    14. MAC Flooding
      6m 12s
    15. DNS Enumeration - 1
      12m 20s
    16. DNS Enumeration - 2
      21m 29s
    17. VLAN Hopping Part - 1
      8m 3s
    18. VLAN Hopping Part - 2
      4m 31s
    19. Countermeasures against Network Securities Attack
      3m 2s
    20. Assignment : Hacking and IP Addresses
      1m 37s

    1. Introduction to Routing Terminologies
      15m 59s
    2. Ports - I
      14m 8s
    3. Ports - II
      8m 6s
    4. Virtual Port Numbers
      10m 10s
    5. Port Scanning
      10m 47s
    6. Port Scanning with Zenmap Part -1
      13m 39s
    7. Port Scanning with Zenmap Part -2
      8m 14s
    8. Advanced Port Scanner
      23m 14s
    9. Countermeasures to Prevent Port Scanning
      2m 45s
    10. Wireshark Part 1
      2m 37s
    11. Wireshark Part 2
      11m 53s
    12. Assignment : Hacking and Ports
      1m 9s

    1. Domain Name Servers
      11m 4s
    2. Top Level Domain
      11m 50s
    3. Second Level Domain
      4m 36s
    4. Domain Name Server Record
      8m 39s
    5. Domain Name Server Request
      16m 22s
    6. Domain Registration Process - Part 1
      14m 11s
    7. Domain Registration Process - Part 2
      8m 42s
    8. Generic Top Level Domain Lifecycle
      8m 32s
    9. DHCP Starvation Attack
      11m 32s
    10. Data Tapping
      17m 9s
    11. Assignment : Hacking and Domain Name Servers
      1m 32s

    1. Introduction to User Identification
      5m 23s
    2. Identity Attacks
      5m 23s
    3. Anonymous Browsing
      15m 17s
    4. Virtual Private Networks
      10m 4s
    5. Types of Virtual Private Networks
      13m 8s
    6. Virtual Private Network Protocols
      20m 12s
    7. IP Proxy
      10m 38s
    8. Proxy Bouncing
      9m 20s
    9. Add-ons for Web Browsers
      7m 37s
    10. TOR Browser
      12m 35s
    11. MAC Spoofing
      13m 59s
    12. Introduction to Steganography
      4m 14s
    13. Steganography Demo
      14m 17s
    14. Email Steganography Demo
      4m 37s
    15. Audio Steganography Demo
      7m 47s
    16. Assignment : Anonymous Browsing and Stegeganography
      2m 4s

    1. Basics of Email ID
      14m 11s
    2. Email Vulnerabilities Part 1
      8m 2s
    3. Email Vulnerabilities Part 2
      10m 7s
    4. Email Protocols
      13m 22s
    5. Email Spoofing Overview
      4m 49s
    6. Email Spoofing Demo
      6m 26s
    7. Email Spamming
      11m 15s
    8. Email Harvesting
      16m 39s
    9. Email Headers
      4m 18s
    10. Countermeasures to Prevent Email Hacking
      2m 49s
    11. Assignment : Hacking and Emails
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    1. Introduction to Malware
      12m 26s
    2. Types of Malware
      17m 14s
    3. Introduction to Viruses
      6m 47s
    4. Virus Demo
      12m 7s
    5. Trojan
      5m 45s
    6. Trojan Demo
      7m 18s
    7. Keyloggers - I
      9m 36s
    8. Keyloggers - II
      10m 19s
    9. Creating Bat Files
      6m 42s
    10. Countermeasures to Prevent Malware Attacks
      4m 7s
    11. Assignment : Hacking and Malwares
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    1. Introduction to Password Cracking
      4m 7s
    2. Password Cracking Techniques
      10m 34s
    3. Dictionary Attacks - BruteForce
      8m 36s
    4. Linux Tools for Password Cracking
      4m 21s
    5. Countermeasures
      4m 38s
    6. Assignment : Hacking and Password Cracking
      1m 54s

    1. Packet Sniffing - Part 1
      9m 28s
    2. Packet Sniffing - Part 2
      10m 56s
    3. TCP Dump
      23m 26s
    4. Assignment : Hacking and Sniffing
      1m 12s

    1. Introduction to Phishing
      17m 48s
    2. Phishing Techniques
      27m 50s
    3. How to Create a Phished Page
      7m 48s
    4. Phishing Practical - Part 1
      14m 16s
    5. Phishing Practical - Part 2
      16m 18s
    6. Phishing Practical - Part 3
      16m 24s
    7. Reporting Phishing Incidents
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    8. Countermeasures
      6m 30s
    9. Assignment : Hacking and Phishing
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    1. Overview
      1m 33s
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      10m 31s
    3. Denial of Service Attack
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      6m 24s
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    6. Social Engineering Attack
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      17m 15s
    8. XSS Exploits Part 1
      13m 23s
    9. XSS Exploits Part 2
      11m 51s
    10. Salami Attack
      6m 28s
    11. Botnet
      11m 3s
    12. DOM XSS Exploits
      14m 50s
    13. Assignment : Coding Attacks
      2m 31s

    1. Overview of Website Hacking
      3m 20s
    2. Google Dorking
      43m 27s
    3. Hacking Admin Panel on Websites
      20m 47s
    4. SQL Injection Basics Part 1
      2m 59s
    5. SQL Injection Basics Part 2
      16m 17s
    6. Blind SQL - Part 1
      5m 19s
    7. Blind SQL - Part 2
      11m 9s
    8. XML Injection
      14m 24s
    9. DVWA with Linux
      27m 51s
    10. DVWA with Windows
      15m 39s
    11. Server Side Request Forgery
      32m 19s
    12. Website Exploits
      18m 9s
    13. Malware Analysis
      17m 37s
    14. Hacking Websites with Burp - 1
      14m 8s
    15. Hacking Websites with Burp - 2
      33m 25s
    16. Session Fixation Attack
      20m
    17. CSRF Attack
      14m 19s
    18. CAPTCHA Exploits
      23m 23s
    19. Bypassing Cross Origin Resource Sharing - 1
      7m 12s
    20. Bypassing Cross Origin Resource Sharing - 2
      12m 37s
    21. Heartbleed Attack
      22m 32s
    22. XML Attack
      9m 8s
    23. File Upload Attacks
      17m 17s
    24. Assignment : Website Hacking
      2m 10s
    25. Assignment : Website Hacking
      2m 31s

    1. Hacking Mobile Devices
      25m 18s
    2. Android Web View Exploits
      4m 44s
    3. OWASP Vulnerabilities
      7m 50s
    4. Windows Hacking
      10m 29s
    5. Assignment : Mobile Hacking
      2m 9s

    1. Introduction to Cyber Crime
      3m 43s
    2. The 419 Scam
      4m 7s
    3. Assignment : Reporting Cyber Crimes
      34s

    1. Introduction to Cyber Laws
      5m 33s
    2. Cyber laws
      10m 57s
    3. Cyber Crime Portals Part 1
      2m 17s
    4. Cyber Crime Portals Part 2
      14m 32s
    5. Cyber Crime Portals Part 3
      10m 45s
    6. Chain of Custody
      4m 23s
    7. Incident Response-1
      5m 50s
    8. Incident Response-2
      5m 36s
    9. ITA 2000 and 2008
      8m 29s
    10. Trademark Infringement
      9m 45s
    11. Copyright Infringement
      6m 26s
    12. Indian Regulators for Cyber Security
      12m 32s
    13. Central Act and State Act
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    14. Assignment : Cyber Laws
      1m 43s

    1. Course Summary
      5m 45s

    1. Interview Questions
      27m 31s

    1. Career Guideline
      3m 5s
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