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callback-2.00 restricted modem access and callback

daemon@ATHENA.MIT.EDU (Lars Wirzenius)
Mon Mar 13 17:31:57 1995

Date: Mon, 13 Mar 1995 13:35:05 +0200
From: Lars Wirzenius <wirzeniu@cc.helsinki.fi>
To: linux-activists@niksula.hut.fi, linux-announce@vger.rutgers.edu

X-Mn-Key: announce

From: "Frank B. Brokken" <frank@suffix.icce.rug.nl>
Subject: callback-2.00 restricted modem access and callback
Reply-To: frank@icce.rug.nl
Newsgroups: comp.os.linux.announce
Keywords: modem, callback, dialup, restricted access
Organization: ?
Approved: linux-announce@news.ornl.gov (Lars Wirzenius)
Followup-to: comp.os.linux.misc

Dear Linuxers,

    I just uploaded callback-2.00.tar.gz to the following ftp-sites:

	ftp.icce.rug.nl	    -   the pub/unix directory
	sunsite.unc.edu	    -	to appear in ./system/Serial
	tsx-11.mit.edu	    -	to appear in ./sources/usr.bin/Communications

    Previous versions of callback (1.21) and of our dial-in-monitor (dim, 1.03)
are now considered obsolete, and are no longer supported by us.

    The callback package (originally developed by Karel Kubat) allows you to
implement restricted modem-access and callback to and from your Linux-box.

For some of us this results in an acceptable phone-bill: the employer pays the
phone connection, and gets (in return) you to work until late at night from
your computer at home.

Apart from this down-to-earth argument, callback also improves security:
although there is a modem, only 'trusted' people can use it, since they're
being called back.

Compared to previous versions (up to 1.21) callback now offers extra features:

    - multiple modems are supported,
    - both callback and dial-in control are supported (thus making another
	program of ours, dim (1.03), obsolete),
    - almost everything is runtime configurable,
    - users may be given selected access to callback-destinations,
    - the documentation is more extensive (and hopefully: improved)

Questions/comment regarding callback 2.00 should be directed to:

        |
     ---|---     
-----+--0--+-----
     |     |

      Frank B. Brokken

	E-mail to: f.b.brokken@icce.rug.nl, or frank@icce.rug.nl
	Phone: 	   (+31) 50 63 36 88 (mo-fr, 9:00-17:00 MET, DST if active)
		   (+31) 59 03 22 23 (otherwise, until Oct. 9, 1995)
		   (+31) 50 403 2223 (starting Oct. 10, 1995).

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