Date: Mon, 18 Sep 2006 16:07:05 -0400 From: Bob <bob@tania.servebbs.org> To: freebsd-questions@freebsd.org Subject: Re: rebooting into single user mode on a remote server Message-ID: <200609181607.06934.bob@tania.servebbs.org> In-Reply-To: <20060918175105.2337.qmail@web83109.mail.mud.yahoo.com> References: <20060918175105.2337.qmail@web83109.mail.mud.yahoo.com>
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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
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