nmap gives info not of open ports but on services that are running.
Michael A Peters
mpeters at mac.com
Wed May 2 22:10:06 UTC 2007
You are probably using iptables to block an external IP address and
using nmap on an internal IP address.
Try running nmap from a different machine.
On Thu, 2007-05-03 at 02:36 +0700, Strong wrote:
> I have noticed that nmap gives me info not of open ports on an
> interface but on services that are running.
>
> $ nmap 192.168.0.1
>
> Starting Nmap 4.11
> Interesting ports on COR (192.168.0.1):
> Not shown: 1678 closed ports
> PORT STATE SERVICE
> 21/tcp open ftp
> 80/tcp open http
>
> While in iptables all ports are denied. And a connection can not be
> established to that interface till I allow it in iptables. Why is it? Is
> there a way to know the open ports - the ones I can connect to, meaning
> they are allowed for connection?
>
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