RE: ambiguity about nmap results

["Thomas Tavaris J (Tavaris)" <tjthomas () LGSInnovations com>]

FYI....... 

Whois Record  for www.nmapyourself.com


Registrant:
   April Kochanowski
   6009 Ranlyn Ave.
   Cincinnati, Ohio 45239
   United States

   Domain Name: NMAPYOURSELF.COM
      Created on: 06-Dec-06
      Expires on: 06-Dec-08
      Last Updated on: 11-Dec-07

   Administrative Contact:
      Kochanowski, April  
      6009 Ranlyn Ave.
      Cincinnati, Ohio 45239
      United States
      (513) 741-2902

   Technical Contact:
      Kochanowski, April  
      6009 Ranlyn Ave.
      Cincinnati, Ohio 45239
      United States
      (513) 741-2902

   Domain servers in listed order:
      NS19.DOMAINCONTROL.COM
      NS20.DOMAINCONTROL.COM
-----Original Message-----
From: nmap-dev-bounces () insecure org
[mailto:nmap-dev-bounces () insecure org] On Behalf Of sara fink
Sent: Friday, May 30, 2008 2:48 PM
To: Nmap Dev
Subject: ambiguity about nmap results

I tried to use nmap from this web site:  http://www.nwwmapyourself.com/.

If I try to run nmap on my external ip say at range 1-1024 with flag -sT
I get Starting Nmap 4.20 ( http://insecure.org ) at 2008-05-30 14:42 EDT
Interesting ports on some ip .:


Not shown: 1022 closed ports
PORT    STATE    SERVICE
0/tcp   filtered unknown
139/tcp filtered netbios-ssn
445/tcp filtered microsoft-ds

To check myself again, I connected via ssh to some other site and from
there ran nmap -sT -p 1-1024 ip

> From there I got a completely different result. Almost all the 1025
ports are open except very few.

Someone can explain me why I get such a difference?

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