Digex transparent proxying

Andrew J. Doane adoane at ais.net
Fri Jun 26 15:28:45 UTC 1998


> It might also be time for content providers of time-sensitive data on the web
> to redirect requests coming from Digex' proxy harvest machines to a web page
> that says something along the lines of "Digex has intercepted your web request
> and directed it through their web caching system.  This impacts the
> time-sensitive data at this site.  Hence you cannot access this site in this
> manner.  Please contact Digex at [insert contact info here] and politely ask
> Digex to stop intercepting your web requests.  When Digex removes this
> interception mechanism and permits you to connect directly to this site again
> without any interference or interception, you will again have full access. 
> Please understand we cannot offer full access without a direct, unintercepted
> connection.  Otherwise we cannot maintain the quality and timeliness of the
> data this web site provides due to interference by a third party."  And so
> forth.  Just an idea really.
> 
> Or does this hijacking mechanism NOT use harvesting techniques that can be
> detected by the source IP address?
> 
> Blah.  Tis late, I must be babbling incoherently.
> 
> Aaron out.
> 

For the record, Cisco cache engines honor the 'no-cache' tags.  If 
content providers who deliver time sensitive data use these tags there
is no issue.

We have been using cache engines here for about a month, and we have
only had one minor incident (an authentication issue).  Otherwise,
they have practically paid for themselfs already.

/ajd/
-- 
       _/_/    _/  _/_/_/_/         Andrew J. Doane
    _/    _/  _/  _/                Director, Network Operations
   _/_/_/_/  _/  _/_/_/_/           American Information Systems, Inc.
  _/    _/  _/        _/            Email: adoane at ais.net, http://www.ais.net
 _/    _/  _/  _/_/_/_/             (312) 255-8500 Voice, (312) 255-8501 Fax
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