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Old 07-16-2011, 03:47 AM   #1
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Registered: Jun 2011
Distribution: Fedora 13
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Scanning a LAN for specifc ports with Nmap

I want to identify all the computers on my LAN that have port 80 open. So I want to scan an IP range (192.168.0-255.0-255) and have Nmap print onto the screen all the IP
addresses it scanned that are accepting connections on port 80. How do I do this? I'm
using version 5.21
Old 07-16-2011, 03:52 AM   #2
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Registered: Apr 2007
Location: Germany
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Hello gen2, welcome to LQ,

is this homework?

If it's homework, please tell us what you've tried by your own.
If it is not homework, please tell us why you want to scan other people's ports.

You may also use the man command
man nmap
which will give you all the required information.

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