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Re: nmap bloqued
From: Leif Ericksen <leife () dls net>
Date: Sat, 04 Feb 2006 09:45:48 -0600

NO habla epanol (me) eposa habla epanol 
There my spanish is worse than your English.    :)


Yes it is possible to stop NMAP from seeing a server.

1) If ping is turned off and you do not tell nmap to scan without trying
to ping the server you will fail the scan. (look at the nmap options)
2) What range of ports are you scanning?  Lets say for instance you are
not going to a limited range of ports 1-59999, now anything in the range
60000-65535 so I being a strange duck have told ssh to listen in on
60000, Sendmail to listen in on 65535 and reconfigured telnet do that it
will listen in on 65000  Your nmap scan will not find anything for that
server as well.   It is going to be a simple matter of how nmap is told
to function.   All very well documented, and I am sorry I do not know if
they have any Spanish documents I have never looked for any since I do
not speak Spanish.
           
On Thu, 2006-02-02 at 13:28 +0100, Oscar Aceña wrote:
Hello,
My question is simple: Can anyone stop scans with nmap in a whole net? I
ask this because i was doing some tests in my net with nmap and only a
pair of them were ok. The other machines returned always down, and i
know this is imposible, because i had scanned them before.

Sorry my speech. I know very few of english language. (If only you could
write in spanish... but that's not imperant :-)


              
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-- 
Leif Ericksen <leife () dls net>


---------------------------------------------------------------------------
EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE
The Norwich University program offers unparalleled Infosec management 
education and the case study affords you unmatched consulting experience. 
Tailor your education to your own professional goals with degree 
customizations including Emergency Management, Business Continuity Planning, 
Computer Emergency Response Teams, and Digital Investigations. 

http://www.msia.norwich.edu/secfocus
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