İnstall nmap for ubuntu

sure@sure:~$ sudo apt-get install nmap

learn OS for host

sure@sure:~$ nmap -O 10.20.20.203 (ip address)

sure@sure:~$ nmap -O 10.20.20.* (all ip block)

Learn ,is hosts up?

sure@sure:~$ nmap -sP 10.20.20.*

Emin Yardım