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!

	Note: We plan on giving out Complimentary PC EXPO Exhibit Passes at
	      this meeting (see section 5 below).

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
	- 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 and second issues had gone out.  Thanks Ross!
Keep an eye out for the next issue (assuming you are on our US Mail mailing
list), its already arriving around NYC.

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.



PC EXPO will be held at the Jacob K. Javits Convention Center on the following
days and times:

	Tuesday		June 20, 1995		10:00 am - 5:00 pm
	Wednesday	June 21, 1995		 9:30 am - 5:00 pm	*
	Thursday	June 22, 1995		 9:30 am - 4:00 pm	*

					* (Level 3 opens at 10am on Wed & Thu.)

We are planning to give out Complimentary Exhibit Passes for PC EXPO at
our May 18th meeting.  Aside from sending in the pass, online registration
is reportedly available.

	Deadline for online registration is June 16.

	Trade Show Information via the Web:	http://www.shownet.com

Note:	While Blenheim.com is a valid domain name, when I tried it today it
	did not appear to have an IP number - ie. Telnet registration doesn't
	appear to be online yet.  I remember that last year Telnet
	registration did work as we got closer to the show.

As usual, Unigroup will be exhibiting at PC EXPO and we again ask for
volunteers to help us staff our booth.  If you can offer any time from an
hour to half or a full day, we would greatly appreciate it.  Please contact
us immediately if you think you can help us out.

Unigroup will also hold a general meeting at PC EXPO after the show
tentatively on 6/21.  Please watch our Web Page and Unilist for further


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

-Rob Weiner
 Unigroup Executive Director

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