[Gllug] how to check for a transparent proxy

[Pete Ryland]

On Sun, Dec 01, 2002 at 01:33:39PM +0000, rich at annexia.org wrote:
> On Sun, Dec 01, 2002 at 03:52:07AM +0000, Pete Ryland wrote:
> > On Sun, Dec 01, 2002 at 03:42:12AM +0000, Xander D Harkness wrote:
> > > Does anyone know how to test for a transparent proxy?
> > 
> > Go to http://pdr.me.uk/t.php and find the bit that says "REMOTE_ADDR"
> > and if that is your IP then there is no proxying, otherwise the external
> > IP of your proxy will be there.
> 
> A decent transparent proxy will rewrite source addresses, so
> this will NOT tell you if there's a transparent proxy in the
> way.

This is contradictory.  If it is rewriting source addresses then the
REMOTE_ADDR according to the web server WILL be the proxy's.

Pete

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