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Re: [gentoo-server] how to stop tracing

From: Mark Rudholm <rudholm(at)hyperreal.org>
Date: Wed Jan 16 2008 - 17:00:55 EST

Christopher Dale wrote:

> widyachacra wrote:

>> Dear List friends,
>>
>> When i scan my own domain from an out side host using 'nmap' tool it shows
>> following results. How do i block this kind of tracing using linux. Please
>> help me.
>>
>> nmap tracing result,
>>
>> PORT STATE SERVICE VERSION
>> 25/tcp open smtp netqmail smtpd 1.04
>> 53/tcp open domain
>> 80/tcp open http Apache httpd 2.2.6 ((Gentoo))
>> 110/tcp open pop3 Courier pop3d
>> 119/tcp open ssh OpenSSH 4.7 (protocol 2.0)
>> 209/tcp open tam?
>> 443/tcp open http Apache httpd 2.2.6 ((Gentoo))
>> 628/tcp open tcpwrapped
>> 993/tcp open ssl/imap Courier Imapd (released 2005)
>> 995/tcp open ssl/pop3 Courier pop3d
>>
>>
>>

> Hi Widyachacra,
> 
> Great question and one that I have had in the past also. In a previous
> post to the gentoo mailing list, someone suggested that port knocking be
> used as a means of securing through obscurity. After looking at it
> (
http://www.portknocking.org), I've found that it's a wonderful means to
> a personal server's security when exposed to the world wide web.

Exposed to the what?

-- 
gentoo-server@lists.gentoo.org mailing list

Received on Wed Jan 16 17:01:34 2008

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