[18186] in North American Network Operators' Group
Re: Digex transparent proxying
daemon@ATHENA.MIT.EDU (Andrew J. Doane)
Mon Jun 29 14:22:27 1998
From: "Andrew J. Doane" <adoane@ais.net>
In-Reply-To: <35935600.FF54EBFE@infowest.com> from "Aaron D. Gifford" at "Jun 26, 98 02:04:16 am"
To: agifford@infowest.com (Aaron D. Gifford)
Date: Fri, 26 Jun 1998 10:28:45 -0500 (CDT)
Cc: nanog@merit.edu
> 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@ais.net, http://www.ais.net
_/ _/ _/ _/_/_/_/ (312) 255-8500 Voice, (312) 255-8501 Fax
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