Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!decwrl!sun!imagen!atari!daisy!david
From: david@daisy.UUCP (David Schachter)
Newsgroups: comp.dcom.lans
Subject: How to secure my dial-in lines from data thieves?
Message-ID: <3007@daisy.UUCP>
Date: 26 Apr 89 02:43:17 GMT
Organization: Daisy Systems, Mt. View, CA
Lines: 35

Help!  "They" want me to shut down my dial-ins unless I can
make them "secure".  Suggestions?

I'm thinking of a few approaches, but I don't know what is
commercially available.

1. Software to run on 4.3 BSD (Vax 750) or SunOS 4.0.1
(Sun 4) to implement call-back using the existing modems.

2. Black boxes to sit between the phone line and the
modem and perform call-back or other verification.

3. Black boxes to sit between the modem and the cpu and
perform call-back or other verification.

4. Terminal server with modems attached, where call-back
or other security measures are implmented in the terminal
server.  Once the terminal server grants access, user
would connect to a specific host, using telnet or rlogin.

5. Call-back modems.  (Icky-poo.  Makes upgrading to new
modem technologies very difficult.)


What do y'all think?  


				-- David Schachter
				   Daisy/Cadnetix Corp.
				   (415) 960-6644


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