From owner-freebsd-hackers@FreeBSD.ORG Mon Oct 10 21:20:22 2011 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1D2A91065670 for ; Mon, 10 Oct 2011 21:20:22 +0000 (UTC) (envelope-from brodbd@uw.edu) Received: from mail-ey0-f182.google.com (mail-ey0-f182.google.com [209.85.215.182]) by mx1.freebsd.org (Postfix) with ESMTP id 7EE398FC19 for ; Mon, 10 Oct 2011 21:20:21 +0000 (UTC) Received: by eyd10 with SMTP id 10so1960001eyd.13 for ; Mon, 10 Oct 2011 14:20:20 -0700 (PDT) MIME-Version: 1.0 Received: by 10.213.108.84 with SMTP id e20mr1048210ebp.82.1318281620260; Mon, 10 Oct 2011 14:20:20 -0700 (PDT) Received: by 10.213.112.130 with HTTP; Mon, 10 Oct 2011 14:20:20 -0700 (PDT) In-Reply-To: <4E935105.1090602@FreeBSD.org> References: <20111004160043.GA16034@lpthe.jussieu.fr> <051853CE-03EC-4EEC-A5AC-C380131B28E4@gsoft.com.au> <4e8f073c.3g2aD/Zz9KdsWOKN%perryh@pluto.rain.com> <4E935105.1090602@FreeBSD.org> Date: Mon, 10 Oct 2011 14:20:20 -0700 Message-ID: From: David Brodbeck To: Doug Barton Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-hackers@freebsd.org Subject: Re: Does anyone use nscd? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Oct 2011 21:20:22 -0000 On Mon, Oct 10, 2011 at 1:09 PM, Doug Barton wrote: > On 10/10/2011 11:55, David Brodbeck wrote: > > Is there any reason to cache negative hits? > > It's very important for DNS since there are a fairly large number of > misbehaving applications that don't stop querying until they get some > kind of answer. > That's a good point. I hadn't thought about it in terms of DNS; we use it mainly for caching LDAP lookups. -- David Brodbeck System Administrator, Linguistics University of Washington