Re: Nmap oprions

From: Hecber Cordova (hecber_at_gmail.com)
Date: 06/24/05

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    To: security-basics@securityfocus.com
Date: Fri, 24 Jun 2005 16:14:05 -0400

            Hi,

            Try this:

            nmap -p21 <net> | grep -B 2 open

            Now, if you want only IP address, may be this can help:

             nmap -p21 <net> | grep -B 2 open | perl -ne 'if (/(\d+.\d+.\d+.\d+)/)
    { print "$1 \n" };'
            

            Regards,

            Hécber Córdova

    El jue, 23-06-2005 a las 10:43 -0700, Juan B escribió:
    > HI,
    >
    > I need to scan my big network for port 21 on many
    > hosts.
    >
    > I want that nmap will show me just the hosts which the
    > port found open. I know that I can do this with grep
    > but im not sure about the syntex.
    >
    > can some one please help.
    >
    > thanks.
    >
    > J
    >
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