From owner-freebsd-questions@FreeBSD.ORG Mon Sep 18 20:07:53 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1AA1E16A403 for ; Mon, 18 Sep 2006 20:07:53 +0000 (UTC) (envelope-from bob@tania.servebbs.org) Received: from mail1.panix.com (mail1.panix.com [166.84.1.72]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6704143D62 for ; Mon, 18 Sep 2006 20:07:42 +0000 (GMT) (envelope-from bob@tania.servebbs.org) Received: from mailspool3.panix.com (mailspool3.panix.com [166.84.1.78]) by mail1.panix.com (Postfix) with ESMTP id BADDF58925 for ; Mon, 18 Sep 2006 16:07:35 -0400 (EDT) Received: from tania.servebbs.org (pool-71-247-45-241.nycmny.east.verizon.net [71.247.45.241]) by mailspool3.panix.com (Postfix) with ESMTP id 4D7E02C44DB for ; Mon, 18 Sep 2006 16:07:33 -0400 (EDT) From: Bob Organization: TamaraB To: freebsd-questions@freebsd.org Date: Mon, 18 Sep 2006 16:07:05 -0400 User-Agent: KMail/1.9.1 References: <20060918175105.2337.qmail@web83109.mail.mud.yahoo.com> In-Reply-To: <20060918175105.2337.qmail@web83109.mail.mud.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200609181607.06934.bob@tania.servebbs.org> Subject: Re: rebooting into single user mode on a remote server X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Sep 2006 20:07:53 -0000 On Monday 18 September 2006 13:51, backyard wrote: > By call-back mode do you mean log into the system via > network and have it call your local system for > administration No.... modems like the US Robotics V.Everything can be programmed with a call-back feature. You dial up the modem, it askes you for a password, you supply the password, and it then hangs up on you, picks up the line, and calls back a configured phone number. You program the modem to call YOU back on a number which has a modem connected, and waiting for an inbound data call..... your modem answers, and you are connected. You then negotiate access to the server (name/passwd) over the serial link. If the remote is connected to the the target serial port consol, you have a pretty hack-proof (nothing is really hack-proof) console access. The modem will only call a pre-set number, so even if someone got your password, the modem would only call you, not the hacker. Bob