From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Chemko Subject: Re: General denial question (tarpitting) Date: Thu, 25 Mar 2004 20:40:56 -0800 Sender: netfilter-admin@lists.netfilter.org Message-ID: <4063B458.4030501@smgtec.com> References: <40634D80.9050609@pay2send.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <40634D80.9050609@pay2send.com> 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"; format="flowed" To: David Nicol Cc: Charlie Brady , qpsmtpd ML , netfilter@lists.netfilter.org Check out the Patch-o-matic enhancements to netfilter. TARPIT? Check. David Nicol wrote: > > > Charlie Braddy wrote, on the qpsmtpd list, which is about > a perl drop-in replacement for qmail-smtpd: > >> If you are going to undertake the noble task of sucking up their >> bandwidth, then I'd suggest that you do the job thoroughly, and make >> sure that their TCP stack decides to retransmit as many packets as >> possible. Use iptables (for instance) to selectively/randomly drop >> packets. > > > That's brilliant! does iptables have a TARPIT target that causes > the peer to retransmit as much as possible? Can we add one? > > CC to netfilter@lists.netfilter.org, the iptables discussion list. >