Nmap — How to Use It ?

Introduction

In this quick post, I would like to explain about Nmap , which is famous for port scanning.

More info:

Port Scanning Techniques | Nmap Network Scanning

Port scanning to someone else’s server can be considered an attack, so be sure to do it on your own lab server.

Let’s start

Perform port scan by specifying IP address

vagrant@vagrant:~$ nmap 192.168.123.123

#It is also possible to specify a range of #ip addresses for scanning 
vagrant@vagrant:~$ nmap 192.168.123.123-130

Status Explanation

Option which we can use

I think that this tool is useful for problem solving, but please be aware that it can also be used dangerously.