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Kali Linux Cookbook - Second Edition by Bob Perciaccante, Corey P. Schultz

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Operating systems and service detection

The following command will run an operating system and service discovery of our Metasploitable host:

nmap -A 192.168.56.102

You will notice a considerable amount of information provided in the output. Starting from the bottom you will see that it correctly identified the machine as well as other useful information:

As we scroll through the output we see a considerable amount of information about running services. It gives us detailed information about the specific service being run on the port, version information, and other relevant information. The following is an example of the VNC port:

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