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Re[2]: proxy servers and site agreements


I'm not sure the situation you are describing is exactly analogous to the
proxy server problem that began this thread. Many publishers, including
Science, have no difficulty accommodating a proxy server that is placed
'in front of' a single institution. Provided the institution and the
publisher are meaning to provide full, site-wide access, the proxy really
presents no problems.

What you are describing below sounds more closely analogous to a 'national
cache' server like JANET in the UK. Even if Belnet is not in fact cacheing
any material, this technical set up presents a significant problem,
because it is a 'multi-institutional proxy' unlike the single institution
proxies that the other messages seem to be describing. This presents a
real problem, since there is no way to distinguish between the different
institutions that use the single proxy server IP address. In theory, if a
single institution within the Belnet system purchased an online
subscription, the content would effectively be available to ALL the
institutions that use Belnet.

We've encountered similar difficulties with the JANET system in the UK,
and the workaround you describe below sounds similar to what has been used
there.  I'd be interested to know if this workaround is difficult for your
institutions to implement, or has other ramifications?

Mike Spinella
1200 New York Ave., NW
Washington, DC 20005

ph. 202 326-6424
email: mspinell@aaas.org

______________________________ Reply Separator _________________________________
Subject: Re: proxy servers and site agreements
Author:  Julien Van Borm <julien.vanborm@uia.ua.ac.be> at Internet
Date:    8/4/99 6:39 PM

Dear Colleague,

This is a well known problem for any transparent proxy server. All Belgian 
universities linked up to Belnet, the Belgian research network, have to 
deal with it.

The only solution Belnet came up so far is a locally and daily updated 
list of exceptions of destinations for which the original IP address has 
to be maintained: a by pass system so to speak.

Julien Van Borm
Universiteit Antwerpen
PB 13
B 2610 Antwerpen
Tel: +32-3-820 21 43
Fax: +32-3-820 21 59
Email: julien.vanborm@uia.ua.ac.be


Paul Reynolds wrote:
> Hi All,
> We are a multi-campus institution with a proxy server physically located 
> at one of these campuses.  As all outgoing traffic goes through the proxy 
> server, users arrive at a web site wearing the IP address associated with 
> the site of the proxy server rather than the actual site or campus of the 
> end-user.  This configuration means that we cannot comply with site
> licenses that restrict access to just one location. 
> Does anyone else have a similar proxy server configuration and if so, how 
> do you manage to comply with single-site license agreements?
> Paul Reynolds
> Acquisitions Librarian
> University of Tasmania Library         Ph: +61 3 62262207 
> GPO Box 252-25  Hobart                 Fax: +61 3 62267642 
> Tasmania.  Australia
> Mailto:Paul.Reynolds@utas.edu.au
> -------------------------------------------------------------------