nanog mailing list archives

Re: Digex transparent proxying


From: Rich Sena <ras () poppa clubrich tiac net>
Date: Sat, 27 Jun 1998 08:12:05 -0400 (EDT)

On Sat, 27 Jun 1998, Karl Denninger wrote:


That doesn't work, since the meta-tag is on the PAGE, not the element (which
technically doesn't exist and is a figment of the server's imagination)

That is why it must first be parsed by the web server.

Therefore, any page which has a non-cacheable element (ie: an ad or
time-sensitive data) must be marked non-cachable.

No sireee Karl - no the entire page but the specific element that is time
sensitive.

Congratulations - you just specified that any shtml or asp page must be
marked non-cachable, along with any time-sensitive or advertiser-sponsored
page.

Yikes - Karl there are many differnt items on the page - they do not all
have to have the same attributes - a cgi, an asp a banner-add, or maybe
some other item on the page can be marked dynamic while the rest of the
elements can be cached.

If that actually happens, then the proxy server operators will start
shutting off recognition of the headers, and now we're right back where 
we started, along with the performance problems that this causes (forcing
the traffic through a proxy server for EACH access actually HURTS
performance, not helps it).

Yeah assuming that everyone who owns/operates a proxy/cache is a total and
utter moron.


--
I am nothing if not net-Q! - ras () poppa clubrich tiac net



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