The best way to check transparent proxying is to make a webserver that
serves dynamic content (such as a counter) but without the Pragma: No-Cache
header, thus asking to be cached. This should be made both on IIX and
abroad.
Then the robot should to the following:
1. Request the page and store the value.
2. Request the page again. Check if the same value. If so, there is a proxy
running. Try checking proxy identification.
3. Request the page again with no-cache header. If the same value, the proxy
is caching even when it should not. This is a major problem.
This should be done for both webservers on each connection.
Alon
> Recently, with the ADSL (and now also CATV) connections in Israel, the
> ISP's found themselves in a strange status: The ratio between the
> total bandwidth of their users, and the bandwidths of the ISP's to
> abroad (and even between themselves), is higher than ever.
>
> Upgrading the connections, especially to abroad, is not simple, since
> it involves high costs.
>
> The solution of some ISP's was "simple": They route all your traffic
> through transparent caching proxies.
>
> While this "solution" allows them to serve more users and have a faster
> service, it causes many difficulties to users, especially users who
> update remote contents.
>
> The use of transparent proxies became one of the main parameters to
> choose between ISP's.
>
> Let's build a simple table that will map the use of transparent proxies
> by the various ISP's:
>
> Who uses it, does he use it for all of his customers or only for ADSL
> (CATV?), and is it used for all the traffic or only for abroad (while
> local traffic through IIX goes directly).
>
> After wasting hours of work today without understanding why my remote
> changes sometimes affect and sometimes don't, I think it is a serious
> problem that can't be underestimate.
>
> If you know a source for this information, or know about an existing
> table, or have an automatic "robot" to check the use of transparent
> proxies, please let me know.
>
--
This message was sent by Alon Altman ([EMAIL PROTECTED]) ICQ:1366540
The RIGHT way to contact me is by e-mail. I am otherwise nonexistent :)
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