Nmap

Hey ….so let’s talk about the Nmap which stand for Network Mapper. It’s is a open-source tool that is used to scan any network. This tool is also available in GUI form. This tool performs different types of scans such as:

>Port Scan

So first we talk about Port scan so in this type the nmap checks for the ports that which ports are open and which ports are closed. Let’s see it by using an example:

Command: nmap -p 80,443 Domain-name/Ip address

Here,

• -p:- port scan.
• 80,443:- The port numbers to scan. You can scan any number of ports.
• Domain-name/Ip address:- The name of the domain which you want to scan.

Nmap Port Scan

You can also scan all the Host at a time by using tcp three ways handshake.

Command: nmap -sT Domain-name/Ip address

Nmap Port scan

>Aggressive scan

In this aggressive scan it detects OS, version detection, script scan, and traceroute, etc.

Command: nmap -A Domain-name/Ip address

Here,

• -A:- Aggressive scan.
• Domain-name/Ip address:- The name of the domain which you want to scan.

In Nmap you can also get help by using Command: nmap -h/help

You can download the tool from:

For GUI version:- https://nmap.org/

For Command prompt:-https://github.com/nmap/nmap.git