From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.saout.de ([127.0.0.1]) by localhost (mail.saout.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id reGSPRwzAWLz for ; Thu, 11 Jul 2013 11:49:17 +0200 (CEST) Received: from mail01.freesources.org (mx01.freesources.org [80.237.252.132]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.saout.de (Postfix) with ESMTPS for ; Thu, 11 Jul 2013 11:49:17 +0200 (CEST) Received: from ip-5-146-93-232.unitymediagroup.de ([5.146.93.232] helo=[192.168.0.105]) by mail01.freesources.org with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1UxD6t-0000eN-Fx for dm-crypt@saout.de; Thu, 11 Jul 2013 09:24:27 +0000 Message-ID: <51DE79C6.7010306@freesources.org> Date: Thu, 11 Jul 2013 11:24:22 +0200 From: Jonas Meurer MIME-Version: 1.0 References: <20130711065320.GA19568@tansi.org> In-Reply-To: <20130711065320.GA19568@tansi.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [dm-crypt] encrypted SWAP FAQ item List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de Heya, Am 11.07.2013 08:53, schrieb Arno Wagner: > Dear all, > > I just have added a mini-HOWOT on how to set up encrypted swap > in FAQ item 2.2: > http://code.google.com/p/cryptsetup/wiki/FrequentlyAskedQuestions > > Proofreading and suggestions welcome. Good idea to add it to the FAQ. Thanks for maintaining this very valuable piece of documentation. But maybe you should more emphasize the fact that /etc/crypttab implementations are distro-specific. While I know for sure that options like swap and noearly are supported in Debian-based distributions, I'm not sure about Redhat-based ones. Last time I looked, only a small subset of crypttab options that we've implemented in Debian were supported on Redhat-based systems. Additionally, the following sentence looks wrong to me: "Note: use /dev/random if you are paranoid or in a potential low-entropy situation (embedded system, etc.).". Mainly in low-entropy situations /dev/random would cause the boot process to hang, right? So for these setups /dev/urandom actually is the better solution. Granted that one isn't paranoid ;) Kind regards, jonas