Re: Nmap oprions

[Jacob Bresciani <jacob () bresciani ca>]

much better then mine, 
-B, didn't know that switch. This will help me in a number of cases
thanks.

:)

On Fri, 2005-06-24 at 16:14 -0400, Hecber Cordova wrote:
>       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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