nmap Scanning Tool (Network Mapper Tool)

How to find All System in the network
nmap -sn 192.168.56.103

How to Detect Operating System of Remote System

nmap -O 192.168.56.103

 How to Detect Services on Port of Remote System
nmap -sV 192.168.56.103

How to find all IP Protocols

nmap -sO 192.168.56.103

UDP port Scanning of Remote System

nmap -sU 192.168.56.103

TCP Port Scanning of Remote System
nmap -sT 192.168.56.103

How to scan Web Server of a website

nmap -sV -T4 -F target website