Educause Security Discussion mailing list archives

Re: Merchant services credit card project


From: Scott Genung <sagenung () ILSTU EDU>
Date: Sun, 26 Jun 2005 22:51:38 -0500

Willis,

OK. That's the definition I've been pushing. So the next question is (also
part of the debate), what constitutes a firewall? Can it be host based
(this was implied) or must it be a network appliance? Or, can it be router
ACLs using the established keyword for providing basic stateful inspection
protection?

At 10:19 PM 6/26/2005, Willis Marti wrote:
> For example, the term public facing (used in the
> self assessment) is something that we don't seem to agree on here. Does
> this mean the public Internet or basically anyone (including campus users)
> that interface to the front-end transaction gateway?

 We have about 10 different processing sites physically on our main campus.
Our understanding is that for each processing system, I have to establish a
demarcation point, using a firewall that does NAT, such that all traffic to
a credit card system flows through that firewall. Any system "behind" the
firewall must be covered by the assessment. Anything outside that firewall
is the public. So we have a campus (and some departmental) firewall, but we
also have a firewall in front of every processing system. Our residence halls,
for example, are behind the campus firewall, but are "public" compared to any
of the card processing systems.
Cheers,
 Willis Marti
 Associate Director for Networking
 Computing & Information Services
 Texas A&M University


Scott Genung
Manager of Networking Systems
Telecommunications and Networking
Illinois State University
124 Julian Hall
Normal, IL 61790-3500

sagenung () ilstu edu
Phone: (309)438-7258
Web: http://www.tel.ilstu.edu

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