Educause Security Discussion mailing list archives

Re: classifying P2P traffic - what about legit uses?


From: Joel Rosenblatt <joel () COLUMBIA EDU>
Date: Tue, 29 Jan 2008 22:42:41 -0500

Sorry .. this is only for Columbia DMCA .. we can't do this for affiliates.

Joel

--On Tuesday, January 29, 2008 9:38 PM -0500 Barbara Torney <bt42 () columbia edu> wrote:

Joel, will this replace the emails we get now about abuse complaints? When will it go into production?  Can we get more 
info?  Thanks, bat

On Tue, 29 Jan 2008, Joel Rosenblatt wrote:

We have automated our DMCA takedown process. This fully automated version
will go live next month.

Complaints come into our copyright abuse ID and are parsed for IP and
timestamp

Complaint is verified from Flows (fuzzy logic is used :-)

Mac address is gotten from DHCP and ARP logs

Remedy ticket is built

Mac address is captured

User sees notice by bringing up web browser - this includes notice,
information on copyright, test about information on copyright

If user passes test, they can uncapture with or without protest - information
is logged into ticket

with protest tickets are verified by human

Letter is sent to proper Dean's office, and depending on number of
violations, appropriate action is taken by Dean.

We (IT Security) are not in the punishment business, we find them, check them
and turn them over.

This is obviously a trimmed down, simplified version of what we are doing -
but you can get the idea.

We started building this process when processing complaints started taking up
1 FTE

Your mileage may vary.

Joel Rosenblatt

Joel Rosenblatt, Manager Network & Computer Security
Columbia Information Security Office (CISO)
Columbia University, 612 W 115th Street, NY, NY 10025 / 212 854 3033
http://www.columbia.edu/~joel


--On Tuesday, January 29, 2008 4:56 PM -0600 Curt Wilson <curtw () SIU EDU>
wrote:

I concur with most of Randy's points, however our attempts at blocking
potentially copyrighted contents and letting "safe" contents pass through
was met with
failure and many takedown notices. We could potentially try again, but many
other priorities exist.

Our campus was experiencing bandwidth issues, and a deluge of RIAA/MPAA
takedown notices (especially wrt areswarez) and have a small staff handling
many
other issues. Technical solutions to block P2P were instituted with
significant success. We've had to utilize several techniques to provide for
decent
coverage, and it's still not completely foolproof. The opportunity for
exceptions is less than ideal, however that option does exist. In every
case so far
the user has been able to obtain the contents through other means (such as
http). Bandwidth is a lot cleaner, and we are less clogged up with notices
and
takedown bureaucracy.

How do other .edus handle their takedown processes? I believe that the IT
Security role in such a process should be minimal - collect the relevant
logs for
another campus area and let them handle the bureaucracy components of the
situation. But that's not how things are currently executed here.


Randy Marchany wrote:
Having lurked on this and other related threads over the past couple of
months, I'd like to ask a few questions and make a few observations about
how
EDUs appear to be dealing with P2P.

1. With all of the "monitoring" and "rate limiting" strategies, how does
your
institution deal with legit uses of P2P? We're a land grant and our
extension
division may use P2P to distribute videos/sound recordings of their
products
to extension agents around the state.  Obviously, blocking all P2P would
prevent them from doing their business. Music students working on projects
and
putting their "product" on the net for download (legit because permission
was
given to distribute) is another example.

2. How many BitTorrent servers or other P2P servers are on your campus
nets?
What type of scanning or metrics do you collect about p2p traffic? The
usual
suspects like excessive traffic to/from IP address is nice but what do you
do
to keep tabs on "normal" P2P traffic?

3. An observation: I'm a security type and a musician. I've always thought
that banning P2P traffic because of the potential "copyright" problems was
like banning the US Postal Service (Fedex, UPS) because someone xeroxed a
book
and use them to mail the book. I don't buy the volume issue (it's much
faster
using P2P than USPS....duh!) because that's a smoke screen. The real issue
is
making sure users understand copyright issues and know what the potential
penalties are.  There are legit uses of P2P in our world and I don't see
forcing users to jump through hoops to do real work as being an effective
practice. If it's too cumbersome, they'll circumvent it. Having IPS
rulesets
blocks the casual user but not the determined user. I can remember not
being
able to download tunes from our band www site because of an arbitrary
block
while visiting an EDU. Never mind that it was legal (we, the copyright
owners,
give permission to distribute freely). The block prevented a legit use of
P2P.

4. Another observation: are we taking the easy way by arbitrarily blocking
P2P
because a) we're short staffed b) we're lazy c) we don't have resources
for
user education d) we don't have upper mgt support d) we're afraid of the
RIAA/MPAA e) all of the above? Shouldn't we be investing more in the short
term (policy enforcement, user education, categorizing P2P traffic to id
the
illegal stuff)? This short term effort would eliminate a good chunk of the
longer term problem.

Just my .01 worth.

        -Randy Marchany
        VA Tech IT Security Office




Joel Rosenblatt, Manager Network & Computer Security
Columbia Information Security Office (CISO)
Columbia University, 612 W 115th Street, NY, NY 10025 / 212 854 3033
http://www.columbia.edu/~joel


  -------------------------------------------------------------------------
  Barbara Torney                                        phone: 212-678-3487
  Director, Administrative Information Services fax:   212-678-3243
  Teachers College, Columbia University                212-678-4048
  525 West 120 Street, Box 43                   email: bt42 () columbia edu
  New York, NY 10027                            room:  241 Horace Mann



Joel Rosenblatt, Manager Network & Computer Security
Columbia Information Security Office (CISO)
Columbia University, 612 W 115th Street, NY, NY 10025 / 212 854 3033
http://www.columbia.edu/~joel

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