Path: utzoo!mnetor!uunet!husc6!uwvax!dogie!uwmcsd1!ig!jade!ucbvax!cartan!dwu
From: dwu@trwrb.UUCP (Daniel Wu)
Newsgroups: comp.unix.questions
Subject: setting up modem to call back
Message-ID: <1496@cartan.Berkeley.EDU>
Date: 13 Jan 88 03:59:03 GMT
Sender: nobody@cartan.Berkeley.EDU
Reply-To: dwu@trwrb.UUCP (Daniel Wu)
Organization: TRW Electronic Systems Group
Lines: 26
Keywords: PC phone home



I would like to set up our SUN3 system so that users can call in and have 
the machine call them back.  Here's what we would like to do:

	(1) User calls up a dial-up line.  Some daemon hangs around listening
for the dial-up ports, and makes the connection.  

	(2) At this point, the machine offers a restrictive shell which 
prompts the user for his login name and a password.  Then it hangs
up the line.

	(3) The machine looks up the user's name and ID in a particular file,
reads in his home phone number, and then calls him back. 

If this sounds like a defender-type modem, it should; that's what we have in 
mind.  However, we would prefer to implement this in software for a wide
variety of generic modems.

I imagine that this type of scheme has been implemented before.  If any kind 
soul out there would like to donate his source code or explain (in great
detail!) how to go about setting this up,  I would very much appreciate it.


Daniel
{ucbvax,decvax}!trwrb!dwu