Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261850AbUK2W4P (ORCPT ); Mon, 29 Nov 2004 17:56:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261866AbUK2Wye (ORCPT ); Mon, 29 Nov 2004 17:54:34 -0500 Received: from mail.dnm.gov.ar ([200.55.54.66]:7328 "EHLO mail.dnm.gov.ar") by vger.kernel.org with ESMTP id S261850AbUK2Wtf (ORCPT ); Mon, 29 Nov 2004 17:49:35 -0500 Message-ID: <41ABA80E.5040005@migraciones.gov.ar> Date: Mon, 29 Nov 2004 19:51:58 -0300 From: Javier Villavicencio User-Agent: Mozilla Thunderbird 0.8 (X11/20041108) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Jan Engelhardt Cc: Linux Kernel Subject: Re: no entropy and no output at /dev/random (quick question) References: <41A7EDA1.5000609@migraciones.gov.ar> In-Reply-To: X-Enigmail-Version: 0.86.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1300 Lines: 33 Jan Engelhardt wrote: >>I have a server that runs kernel 2.6.9, some web and monitoring >>services, it's connected to two different networks with two different >>network cards, and somehow a php developer discovered that /dev/random >>wasn't giving any entropy to him (O_O) so i checked it out... >>[...] >>As you may see my only sources of entropy where the timer, eth0, eth1 >>and the DAC960. > > > I doubt that timer and eth* are a non-predictable source. As such, they should > not contribute to the entropy. Better is the keyboard and/or mouse. SSH traffic > is network traffic, and if you send it to a network card, you can expect an > interrupt at