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NMAP OS Detection

Sometimes on a network it is beneficial to know the Operating System (OS) of a machine. Accessing a system is easier when you know the OS because you can specifically search the Internet for known security holes in the OS. Granted, security holes are usually patched quickly, but you need to know when a security hole exists. Scanning your own network to detect the OS types can help you to see what a hacker will be able to see about your network.