Re: Showing Ports Nmap Hides

["DePriest, Jason R." <jrdepriest () gmail com>]

Running -v -v should be enough to display all the ports.

I think a -v will put all the ports in the greppable output.

-Jason

On Sun, Aug 30, 2009 at 1:06 PM, Andrew Johnston<> wrote:
> Hello-
>
> I have recently downloaded and started using Nmap 5.00. Like all version of
> nmap, I find it is a very helpful tool. But recently, I was charged with
> scanning a group of computers. All nmap said was there was hundreds of
> filtered ports. I randomly guess a few ports and nmaped them. Nmap said they
> were filtered/closed, but they were completely open. How do I force nmap to
> show these ports? I believe that a firewall on the machine is recognizing
> the scan, because at first (at least in nessus) is shows them as open, but
> then the firewall is reconizing the scan, and sending out an RST to each
> port that was sent a SYN.
>
>
>
> --
> Andrew Johnston
>
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