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====Nmap or Network Mapper====

'''Installation'''

First, you have to install nmap if you haven’t installed it. If you’re not logged in as root, type <pre>sudo apt-get install nmap</pre>[[file:nmap1.png|500px]]

'''Find IP Address'''

To detect the device on a network, the first task is to figure out what is the IP address on your device. Type <pre>ip address</pre>
The address can be found in the position of the highlighted block. 

[[file:nmap2.png|500px]]

'''Using Nmap'''

By using nmap to scan the ports on each device and figure out which ones are open, type <pre>nmap 192.168.199.138/24</pre>
You may have a list looks similar to the picture below.
 
[[file:nmap3.png|500px]]

Then you’ll find all the open port on this network by typing <pre>nmap 192.168.199.140 -p 1-65535</pre>  
[[file:nmap4.png|500px]]

'''Further Using of Nmap'''

If you want to find further details of using nmap, type <pre>nmap --help</pre> This command will give you a long list with description of all extension you can use.
[[file:nmap5.png|500px]]