From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Linux" Subject: Re: Fighting back Date: Fri, 17 Jan 2003 16:27:08 -0700 Sender: netfilter-admin@lists.netfilter.org Message-ID: <002501c2be7f$fad767a0$6301a8c0@VAIO> References: <20030117192237.66443.qmail@web40206.mail.yahoo.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: netfilter@lists.netfilter.org That's a very good point. Hmmm... More thinking needed. Linux_303 ----- Original Message ----- From: "SBlaze" To: "Linux" Sent: Friday, January 17, 2003 12:22 PM Subject: Re: Fighting back > I think its safe to say we would all like to give a little back to those who > repeatedly bombard us with useless scans... What you want to do can > "theoretically" be done with the MIRROR jump. Should it be done? Probably not. > > Once an attacker learns they are in a sence scaning themselves.... they can > easily go about some sort of spoofing method in which the SRC IP is a target as > opposed to himself. You could easily find yourself a man in the middle of a DOS > attack against someone. > > I wouldn't do this... but hey it's up to you > > SBlaze > > > --- Linux wrote: > > Hello all, > > > > I feel that rpc and netbois scans to my network from the outside are an > > obvious attempt to see what I have open, and I'm sure all of you would agree. > > Because I run NFS only via my internal network, there are no machines that > > would connect via my external interface. I am going to institute a rule that > > will cause a person scanning on ports 32770:32789 and 137 to redirect and > > scan the ports on the src IP address. In essence, anyone scanning me, will > > be basically scanning themselves. > > > > All I am asking is for some input to this and whether it is a good idea or > > not. > > > > Thank you, > > > > Linux_303 > > > > > ===== > "No touchy NO TOUCHY! Emperor Kuzko -=Emperor's New Groove=-" > > __________________________________________________ > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > http://mailplus.yahoo.com >