[Ti] Privacy

[kerem unal]

Hi ...

May I suggest the use of a less OS dependent tool like nmap ???

A scan on this page showed that all my ports were in stealth mode ...

while using a GUI frontend of nmap (like : 
http://faktory.org/m/software/nmap/ ) showed the correct answer :

netbios open ...  (I'm working in the M$ network of my work place right 
now ...)

knowing that a lot of hackers use nmap to scan your ports ... I would 
trust more this soft ...

I'm not a guru of these things but I think that this page where you do 
your scan only works when used in windows with a
"I love to go in your system and look what's inside" browser (i. e. IE )

Kerem


Le Dimanche, 15 juin 2003, à 17:43 Europe/Zurich, Trevor J. Hutley a 
écrit :

> At 09:03 +0100 15-6-2003, Tarik Bilgin wrote:
>> if you want a layman's review of your internet profile... try using
>> https://grc.com/x/ne.dll?bh0bkyd2 and click the "test my shields"
>> and "probe my ports" buttons to get an idea of what ports and
>> services your computer is offering.
>
>
> Tarik - a very interesting URL !
>
> I ran all the test options, and only got a completely positive and
> encouraging report (appended).
>
> regards,  Trevor
>
>
> Your Internet port ... does not appear to exist!
> One or more ports on this system are operating in FULL STEALTH MODE!
> Standard Internet behavior requires port connection attempts to be
> answered with a success or refusal response. Therefore, only an
> attempt to connect to a nonexistent computer results in no response
> of either kind. But YOUR computer has DELIBERATELY CHOSEN NOT TO
> RESPOND (that's very cool!) which represents advanced computer and
> port stealthing capabilities. A machine configured in this fashion is
> well hardened to Internet NetBIOS attack and intrusion.
>
> Unable to connect with NetBIOS to your computer.
> All attempts to get any information from your computer have FAILED .
> (This is very uncommon for a Windows networking-based PC.) Relative
> to vulnerabilities from Windows networking, this computer appears to
> be VERY SECURE since it is NOT exposing ANY of its internal NetBIOS
> networking protocol over the Internet.
>
>
> Stealth!		There is NO EVIDENCE WHATSOEVER that a port
> 		(or even any computer) exists at this IP address!
>
> If all of the tested ports were shown to have stealth status, then
> for all intents and purposes your computer doesn't exist to scanners
> on the Internet!
>
> It means that either your computer is turned off or disconnected from
> the Net (which seems unlikely since you must be using it right now!)
> or an effective stealth firewall is blocking all unauthorized
> external contact with your computer. This means that it is completely
> opaque to random scans and direct assault. Even if this machine had
> previously been scanned and logged by a would-be intruder, a
> methodical return to this IP address will lead any attacker to
> believe that your machine is turned off, disconnected, or no longer
> exists. You couldn't ask for anything better.
>
> There's one additional benefit: scanners are actually hurt by probing
> this machine! You may have noticed how slowly the probing proceeded.
> This was caused by your firewall! It was required, since your
> firewall is discarding the connection-attempt messages sent to your
> ports. A non-firewalled PC responds immediately that a connection is
> either refused or accepted, telling a scanner that it's found a live
> one ... and allowing it to get on with its scanning. But your
> firewall is acting like a black hole for TCP/IP packets! This means
> that it's necessary for a scanner to sit around and wait for the
> maximum round-trip time possible ‹ across the entire Net, into your
> machine, and back again ‹ before it can safely conclude that there's
> no computer at the other end. That's very cool.
>
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