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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    7. Operating System Cyber Attacks
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    13. Setting up a Hacking Lab using Metasploit
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    14. Basic Linux commands in Linux
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    15. File commands in Linux
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    16. Folder commands in Linux
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    17. Shell commands in Linux
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    19. Assignment : Introduction to Ethical Hacking
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    5. Eavesdropping Attack
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    6. Overview of Nmap
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    7. Nmap Scanning Methods - Part 1
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    9. Assignment : Ethical Hacking Phases
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    11. ARP Spoofing Demo
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    14. MAC Flooding
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    15. DNS Enumeration - 1
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      21m 29s
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    18. VLAN Hopping Part - 2
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    20. Assignment : Hacking and IP Addresses
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    1. Introduction to Routing Terminologies
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    2. Ports - I
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    3. Ports - II
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    5. Port Scanning
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    6. Port Scanning with Zenmap Part -1
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      8m 32s
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      5m 23s
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      15m 17s
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    3. TCP Dump
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    1. Course Summary
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    1. Interview Questions
      27m 31s

    1. Career Guideline
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