Nmap is designed to allow the scanning of networks in order to determine which hosts are up and what services are they offering. Nmap supports a large number of scanning options, which are overkill for what will be done in this book.
Nmap is installed with the following command:
sudo apt-get install nmap
Yes to install Nmap and its dependent packages.
After it is installed, run the following command to see all the hosts that are currently on the network:
nmap –T4 –F <your_local_ip_range>
-T4 sets the timing template to be used, and the
-F option is for fast scanning. There are other options that can be ...