From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-nfs-owner@vger.kernel.org Received: from mout.perfora.net ([74.208.4.194]:51393 "EHLO mout.perfora.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760784Ab3DBSxp (ORCPT ); Tue, 2 Apr 2013 14:53:45 -0400 Date: Tue, 2 Apr 2013 14:53:38 -0400 From: Jim Rees To: Simo Sorce Cc: linux-nfs , Steve Dickson , Jeffrey Layton Subject: Re: [PATCH] Avoid PTR lookups when possible Message-ID: <20130402185337.GC18900@umich.edu> References: <1364910351.2660.1243.camel@willson.li.ssimo.org> <20130402150049.GA526@umich.edu> <1364919975.2660.1255.camel@willson.li.ssimo.org> <20130402164631.GA23840@umich.edu> <1364922203.2660.1265.camel@willson.li.ssimo.org> <20130402183907.GB18900@umich.edu> <1364928519.2660.1279.camel@willson.li.ssimo.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1364928519.2660.1279.camel@willson.li.ssimo.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: Simo Sorce wrote: > And stop using the term "mitm". A mitm attack is used to > convince both ends of a connection that they are talking to each other. DNS > is not a mutually authenticated exchange. Well it is still a sort of Man in the Middle, as you also have to redirect communications (nfsv4 uses TCP) for it to be effective, it is just not exploiting a crypto issue. Now you've lost me again. I thought we were discussing dns. What does nfs have to do with it?