When:  Thursday, May 18th, 1995

     Where:  Chemical Bank
             55 Water Street (enter at Old Slip)
             South Tower, 13th Floor Conference Room (follow the signs)

      Time:  5:30 PM - 6:30 PM  Registration

             6:30 PM - 7:00 PM  Unigroup Business

             7:00 PM - 9:30 PM  Main Presentation:


   Speaker:  Steven M. Bellovin,
             AT&T Bell Laboratories.

	Main Presentation:

	Firewalls are a collection of components which provide controls on
	the flow of data between two networks. They are commonly used to
	shield an internal network from direct access to the Internet.
	Unigroup is very pleased to have Steven M. Bellovin of AT&T Bell
	Laboratories as the speaker for our meeting on Firewalls and
	Internet Security. 

	Steven M. Bellovin received a B.A. degree from Columbia University,
	and an M.S. and Ph.D. in Computer Science from the University of
	North Carolina at Chapel Hill.  While a graduate student, he
	helped create netnews; for this, he and the other perpetrators
	were awarded the 1995 Usenix Lifetime Achievement Award. He has
	been at AT&T Bell Laboratories since 1982, where he does
	research in networks, security, and why the two don't get along.
	Mr. Bellovin is the co-author of the recent book ``Firewalls and
	Internet Security: Repelling the Wily Hacker''. He is currently
	focusing on how to write systems that are inherently more secure. 

	The following topics will be discussed at this meeting: 
	-	What is a firewall. 
	-	Why a firewall should be used. 
	-	The different types of firewalls, their advantages
		and disadvantages. 
	-	Where firewalls should be used. 
	-	The limitations of firewalls. 

	Information on Mr. Bellovin's book: 

		Firewalls and Internet Security,
		Repelling the Wily Hacker

		William R. Cheswick
		Steven M. Bellovin

		Addison-Wesley, 1994.
		ISBN 0-201-63357-4.

	Please join us for this meeting, you will NOT want to miss it!

Directions:	55 Water Street is between Water Street & Front Streets
		at Old Slip...  about 7 blocks south of Fulton St. and
		the South Street Seaport.
		Take 4 train to Bowling Green & Walk Due East;
		Take 2/3 trains to Wall Street, Walk East to Water St.
			then walk South 5 blocks;
		Take M/J trains to Broad St., Walk East to Water St.;
		Take N/R trains to Whitehall St., Walk North East to Water St.
		There is parking on the street and there is a lot right
			in the building, entrance on Old Slip.

		Room Location Specifics:
		   Enter the building at Old Slip.  To get to the South
		   Tower of the complex, you enter the building at Old
		   Slip at the "North Tower" doors.  This entrance is
		   is immediately to the right of the main entrance,
		   towards Water Street.  Go past the guard's desk
		   (mentioning you are heading for Unigroup) to the
		   elevator bank and go to the 13th floor.
		   When you get to the 13th floor, follow the signs leading
		   you to the meeting room.

		   The signs will lead you from the elevator, through a set
		   of doors, then past the cafeteria.  If the entrance
		   doors near the elevator on the 13th floor are locked
		   (may happen after 6pm), call the security desk using the
		   available telephone, and they will radio the guard on
		   the 13th floor to let you in.  After the cafeteria, you
		   see another "lobby" area.  Walk past the cash machines,
		   make a left and look for a sign marking the meeting room.


	Fee Schedule:
		Yearly Membership:				$ 50.00
		Single Meeting:					$ 20.00
		Student Yearly Membership:			$ 20.00
		Student Single Meeting:				$  5.00
	==>	Uniforum/Unigroup Joint Yearly Membership	$125.00
		Cash, Check, American Express.

	==>	Unigroup is the Greater NYC Regional Area Affiliate
		of Uniforum - an International Unix Users Group.
		Our Joint Membership Program gives you FULL membership
		in both organizations for a discounted price.


	Please mark this meeting on your calendar and join us!
	Please tell your friends about Unigroup!



Thanks to Chemical Bank, Unigroup holds regular meetings planned for
the Third THURSDAY of Odd Months at Chemical Bank, 55 Water Street, NYC.
Planned meeting dates are: 5/18/95, 7/20/95, 9/21/95, 11/16/95...
Watch for our Special Event meetings at the various trade shows in NYC.

=									=
= For Unigroup Information, Events and Meeting Announcements be sure to =
= visit our World Wide Web Home Page:					=
=									=
=	http://www.unigroup.org/unigroup				=
=									=

To renew your dues, pay your yearly membership or for general information,
 contact Unigroup of NY by USmail:
	Unigroup of New York, Inc., G.P.O. Box 1931, New York, NY 10116-1931

For further information or to get on the Unigroup Electronic Mail Mailing List
 send an Email message to:
	unilist@unigroup.org  or  uunet!unigroup.org!unilist

To contact the Board of Directors of Unigroup, send an Email message to:

To contact the Newsletter Editor, send an Email message to:



Unigroup is currently working on filling our 1995 meeting schedule.
We currently have the following topics in mind:

	- Firewalls & Security				- May  '95
	- So You Want to Connect to the Internet?	- June '95 - PC EXPO.
	- IP version 6					- July '95
	- NFS						- Sept '95
	- Domain Name System (DNS)
	- NIS+
	- Privacy and Encryption (including PGP)
	- Multimedia Enhanced EMail - MIME/Metamail
	- Unix Administration Tools: crash & fsdb
	- Kerberos
	- Object Oriented Databases
	- Fault Tolerant Unix

PLEASE let us know immediately if you:

	- Can give us a presentation on one of these topics
	- Know of a speaker for one of the these topics
	- Have another topic you think we should address
	- Can help us plan one or more meetings - be a meeting coordinator.



A few months ago, the publisher of New York Unix Magazine informed us that the
magazine was "going on hold."  (That's why you havn't seen an issue lately).

Ross Ziskind has volunteered to restart the newsletter and he saw that
the first issue (last meeting's announcement) had gone out.  Thanks Ross!
Keep an eye out for the next issue (assuming you are on our US Mail mailing
list), its going to print soon.

To keep the newsletter going, the two biggest problems to overcome are:

	a) Volunteers to see that it gets out
	b) Content material

If you have any ideas or can help contribute to our newsletter, please make
them known at our meetings and/or let us know by EMail.  If you know anyone
who has experience in sending out a newsletter, we can always use some good
advice.  Ross can be reached via email to editor@unigroup.org.


5.	DECUS NY Metro LUG Meeting Announcement

Here is the current announcement from our friends at the DECUS group:

> Date:	Tuesday, April 25, 1995
> Time:	5 pm - 9 pm			Pre-dinner discussion 5 - 6:15
> Site:	Bailey's Greenhouse Grille	Dinner 6:15 - 7:30
> 	729 3rd Avenue (midtown)	Featured presentation 7:30 - 9
> 	New York, NY
> Cost:	No charge to attend the meeting; we provide a catered dinner, 
> 	for those who want it, for $25 
> 	(full dinner, choice of entree and dessert)
> Meetings are planned for the last TUESDAY of most months.
> Or, to reserve your place at this meeting,
> send e-mail to:
> appears as the "From:"-header in the message you are reading now,
> then you may reserve your place simply by REPLYing to this message.
> ===============================================================================
> ** MARCUS RANUM, of Trusted Information Systems:
>    "SATAN:  What it can do; How to Protect Your Network"
>    We'll discuss the new net-exploration program, SATAN.
>    What does it do?  What does it mean for your network?
>    We will also discuss perimeter security and firewalls.
>    This will be a fairly technical presentation.
> ** NEXT MEETINGS ... 5/30, 6/20 ... future topics include
>    "High Speed Networks"..."Windows 95"
> ===============================================================================
> UPCOMING MEETINGS (May 30, June 20: topics TBA)
>    Bill Hancock on High-Speed Networking
>    Windows 95
>    NY Metro LUG at PC Expo (June 20)
> ===============================================================================
> To subscribe to this electronic-mailing list, send e-mail to:
> containing the text:
> For more detailed instructions, send e-mail to:
> containing the single word (no other text needed):
> 		HELP
> To subscribe to our announcement-by-FAX list
> (same content as this e-mail message, delivered to your fax machine:
> REPLY to this message, and include the fax-phone-number and any other
> routing information you'll need to see on the fax cover page.
> ** Don't forget to include your fax number, and let us know if you wish
> ** to continue (or discontinue) deliveries to you by the other two methods.
> To subscribe to our US Mail list 
> (we send postcards with meeting announcements), write to
> 		Christopher Thorn
> 		NY Metro LUG Secretary
> 		Elias Bureau
> 		500 Fifth Ave.
> 		21st Floor
> 		NY, NY 10110-0297


6.	SEA Meeting Announcements

Here is the current announcement from our friends at the SEA group:

> From: Steve Barber 
> Subject: SEA event 4/27: Computer Security and Liability
> Date: Sun, 23 Apr 1995 22:42:11 -0400 (EDT)
> Reply-To: reservations@panix.com
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> Subject: NYC Talk 4/27: "Computer Security and Liability"
> From: simona@sea.org (Simona Nass)
> Reply-To: reservations@sea.org
>                    Computer Security and Liability
> Date:       Thursday, April 27, 1995
> Time:       6:00pm registration
>             6:30pm lecture begins
> Admission:  $5, free to members of the Society for Electronic Access
>             Reservations required
> Location:   Four Seasons Hotel
> 	    57 E. 57th Street
>             Metropolitan Suite
> The Society for Electronic Access (SEA), a New York metro area group 
> focusing on electronic civil liberties and access issues, will be
> hosting a lecture by Ross Anderson on "Computer Security and Liability."
> The lecture will be of particular interest to anyone in the legal, banking
> and financial communities or involved with computer security, as well as
> to consumers concerned with the risks that result from society increasingly
> relying on computers.
> A recent series of court cases about disputed banking transactions has
> given us some novel insights into how computer security systems fail in
> practice. Often the security goals cannot be defined explicitly enough,
> as the systems are really more concerned with shedding liability than
> controlling risk. There are a number of interesting consequences.
> For example, we have seen that aggressive discovery can be extremely
> effective in winning computer disputes; banks who claim "our systems are
> secure" are wide open to an attorney who says "so show us" - but there
> are very few real systems which can withstand the scrutiny of a hostile
> expert witness. This suggests that there will be a lot more to
> electronic commerce than adding digital signatures to everything.
> Speaker information:
> Ross Anderson is a senior research associate at the University of Cambridge
> Computer Laboratory. He has been interested in security for about ten years
> and has many publications in cryptography and security engineering. He has
> worked in the banking and avionics industries as well as in academia, and
> consults for a wide range of commercial and industrial companies.
> RSVP..........RSVP...........RSVP..........RSVP..........RSVP
> Seating is limited, so reservations are *required* to attend. 
> To make a reservation, or for more information:
>    -- e-mail reservations@sea.org (you will be e-mailed a confirmation
>       and a reservation number, which is required for entry); or
> Make sure to include the full name of the person the reservation is
> for and a contact phone number. Unless you have gotten a reservation
> number, you are not confirmed to attend.
> For additional information about the SEA (including our mission
> statement and the time and place of the next general SEA meeting),
> or send E-mail to "sea-info@sea.org" (you will receive an
> automatic reply).
> =====================================================================
> =====================================================================
> Date: Mon, 24 Apr 1995 18:20:04 -0400
> Reply-To: sea-announce@panix.com
> From: Steve Barber 
> To: sea-list@panix.com, sea-announce@panix.com
> Subject: SEA meeting: Tue May 2 6:30 pm
> The next Society for Electronic Access meeting will be on Tuesday, May
> 2, 1995, at 6:30 p.m. The meeting will be at 49 Chambers St., Room
> 610, NY, NY (between Centre and Broadway in Manhattan).  Nearest
> subway station is City Hall/Brooklyn Bridge.
> This is a general SEA meeting, open to members and the public.
> On the agenda:
> The Latest Online Civil Rights Issues, including:
>     NY & state-level online indecency regulation
> SEA Event Planning -- Copyright event, others
> SEA Nuts and Bolts -- Non-profit tax status,
>                       fund-raising and grant-seeking
> Please send suggestions for additional agenda topics to sea@sea.org.
> -Steve Barber (SEA Secretary)
> The Society for Electronic is a non-profit membership organization
> dedicated to promoting civil rights and access online.
> =====================================================================
> =====================================================================
> Date: Mon, 24 Apr 1995 19:00:14 -0400
> Reply-To: sea-announce@panix.com
> From: Michael Hauben 
> To: sea-announce@panix.com
> Subject: May 1st Talk about Usenet News
>                     Mid-Manhattan Library
>                          presents
>                     Researching the "NET":
>               a talk on the evolution of Usenet
>               News and the significance of the 
>                      Global Network
>                             by
>               Ronda Hauben and Michael Hauben
>                 co-authors of the netbook
>               The Netizens and the Wonderful World
>                 of the Net: An Anthology
>                        May 1, 1995
>                       Monday, 6 pm
>                      free admission
>                   6th floor conference room
>             elevator access 1/2 hour before program
>                     Mid-Manhattan Library
>                455 Fifth Avenue at 40th Street
>                 The New York Public Library
> In the past 25 years a global computer communications network 
> has developed that Ithiel de Sola Pool called "the largest 
> machine that man has ever constructed." The network connects 
> millions of people around the world on a daily basis. This talk 
> is about research done on the Net and on Usenet News, an 
> essential part of the Net. The talk will describe how research 
> was done on Usenet News asking people around the world for their 
> views on the importance of the Net to them. Some of the many 
> responses received will be presented. A brief history of Usenet 
> News will be given to provide the needed perspective. Finally, a 
> view on the significance of the Net for our society will be 
> offered.
> Time will be provided for discussion and questions. 
> The netbook is available online at
> 	http://www.columbia.edu/~hauben/project_book.html 
>  -------------------------------------------------------------------------
> Michael Hauben Columbia College'95 Editor of Amateur Computerist Newsletter
>             by day      hauben@columbia.edu	by night
>  Netizen's Cyberstop


7.	NYSA Meeting Announcements

Here is the current announcement from our friends at the NYSA group:

> From: xev@morgan.com (Xev Gittler)
> Date: 	Mon, 24 Apr 1995 16:46:56 -0400
> To: nysa@esm.com
> Subject: May 8th NYSA & request for speakers
> Sender: owner-nysa@east.esm.com
> The May meeting of the New York Systems Administration group (NYSA)
> will be held on Monday, May 8 at 6:15pm.
> It will be held (tentitively) at Deutsche Bank, located at 1290 6th Avenue,
> between 51st and 52nd streets, on floor 12M.
> At this meeting, we will have a bunch of NYSA members doing 10-15 minute
> talks on something that they are doing or have done that will be
> of interest to the entire group. I have some people already talking, but
> I could use some more, so if you have something to say, please drop
> me a line at nysa-cc@esm.com. A future message will list the exact
> topics.
> Directions by subway:
>    The B, D, F, or Q all stop at 6th and 50th.
> Hope to see you all there.
> Xev


I hope to see you all at Unigroup's May 1995 meeting...

-Rob Weiner
 Unigroup Executive Director

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