Scan beyond IDS/Firewall using evasion technique

Base Machine – Kali Linux

Target Computer – Windows 10, Windows Server 2016/2019, Win 7

Kali Linux
$sudo su -
Password :kali

First Stop Firewall on Windows Machine

#nmap -f [target_ip]

Result – Ports will be displayed

Now Turn ON Firewall on Windows and run the command again

#nmap -f [target_ip]

This time your Windows machine doesn't show ports but it will disclose its MAC address