On Tue, Apr 09, 2002, Eli Marmor wrote about "Re: OT: Transparent Proxies in Israel":
> Also "Cache-control: no-store" (or at least "no-cache").
> I already mentioned HTTP headers in this thread.
> But I haven't thought about REQUEST headers, only RESPONSE headers.
> However, implementing request headers requires a yet another tier of
> proxy, in my side, to add this header to the request (assuming that
> nobody modifies the browser's source).

Yes, I was talking about request headers.
Anyway, since this is only for testing I don't see how hard it is to
run (say) curl to fetch the page with "Pragma: no-cache" (or
"Cache-control: no-cache"). If you must see it on a browser you can
either view the page you fetched (ugly) or after running curl try
shift-reload again and hopefully the cache will return again the *new*
content.

> But back to the original question: Can anybody list the ISP's that
> don't use transparent proxies, even not for ADSL users who access
> foreign (long distance) sites?

No, I never did such research. When I was connected to Netvision's ADSL
it looked like we did not have a transparent proxy, but I'm not sure.
In Barak's connection, I did notice a transparent proxy in place.

Anyway, if you ever find one ISP that doesn't doesn't filter your port
80, you can run a non-caching proxy on it (on some random port) and then
use that proxy from whatever ISP you normally connect to. I used this
trick once to circumvent the 2 layers (!) of transparent proxies we have
at work.

-- 
Nadav Har'El                        |       Tuesday, Apr 9 2002, 27 Nisan 5762
[EMAIL PROTECTED]             |-----------------------------------------
Phone: +972-53-245868, ICQ 13349191 |Just remember that if the world didn't
http://nadav.harel.org.il           |suck, we would all fall off.

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