Re: nmap status question

["David Vertie" <verticalrave () hotmail com>]

Filtered == Port is blocked by a firewall. (As said below :))

If you want more information, it is available in the nmap man page (run the 
command 'man nmap' at the prompt), or the nmap web site, which is at 
http://www.insecure.org/nmap.

David


> From: john mathew <applicant3 () rediffmail com>
> To: security-basics () securityfocus com
> Subject: Re: nmap status question
> Date: 29 Jul 2003 07:27:42 -0000
>
> In-Reply-To: <20030728180326.22164.qmail () www securityfocus com>
>
> Hi Marc ....
>
> A port is in either of the two states ie , open or closed at any point of
> time. But using a firewall a particular port can be blocked.In such a
> scenario when nmap is run aganist  a system which has a particular port
> blocked by a firewall , then the nmap result will show that the particular
> port as filtered .
>
> Normally nmap will show only two types of output ie the open and the
> filtered ports , the closed ports are not shown .
>
>
> Regards
>
> Mathew
>
>
>
>
>
>
>
>
>
> >
> >i am new to linux but after getting my rh9 box running
> >i have started to use nmap to do some scanning of my
> >networks.  can someone tell me exactly what it means
> >when the state of a particular port is 'filtered'?
> >
> >thanks,
> >marc
> >
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