1) Installer NMAP :
# apt-get install nmap
2) Connaître sa propre adresse IP :
# ifconfig
3) Lister les machines “UP” ( si ifconfig nous indique que notre adresse IP = 192.168.0.xxx )
NB : En mode SU/SUDO , on obtient le nom des machine et leur adresse MAC
# nmap -sn 192.168.0.0/24
ou
# nmap -sn 192.168.0.0/16
Exemple de réponse de NMAP :
Starting Nmap 7.01 ( https://nmap.org ) at 2018-02-24 21:17 CET
Nmap scan report for 192.168.0.102
Host is up (0.063s latency).
MAC Address: 5C:51:81:30:94:03 (Unknown)
Nmap scan report for 192.168.0.106
Host is up (0.00024s latency).
MAC Address: C0:3F:D5:64:05:B6 (Elitegroup Computer Systems)
Nmap scan report for 192.168.0.128
Host is up (-0.068s latency).
MAC Address: 54:40:AD:72:A2:EC (Samsung Electronics)
Nmap scan report for 192.168.0.135
Host is up (-0.059s latency).
MAC Address: B8:27:EB:0F:15:A9 (Raspberry Pi Foundation)
Nmap scan report for 192.168.0.254
Host is up (0.00093s latency).
MAC Address: F4:CA:E5:55:1B:2B (Freebox SAS)
Nmap scan report for 192.168.0.150
Host is up.
Nmap done: 256 IP addresses (6 hosts up) scanned in 3.81 seconds
Faire un beau tableau avec les adresses IP et les noms de domaine
On peut faire un diagramme avec le logiciel DIA:
# apt-get install dia dia-rib-network