Understanding the subnetwork is the first process in an attack. The whole step followed for Nmap is in the screencast video. The steps followed are as below :
Understand the subnet in which the source machine is in.
This could be done through “ifconfig” and get the ip address of the machine.
The machine IP Address is 192.168.20.12; and the subnet would be 192.168.20.1.
Since we have got the subnet of the machine, lets see the other machines in the subnet. This is done through the Nmap command.
nmap 192.168.20.1-20 // This scans the subnet for the 20 IPs – 192.168.1.1 to 192.168.20.20
NMAP Help
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