[Gllug] how to check for a transparent proxy

[itsbruce at uklinux.net]

On Tue, Dec 03, 2002 at 11:21:39AM +0000, rich at annexia.org wrote:
> On Tue, Dec 03, 2002 at 10:05:28AM +0000, Bruce Richardson wrote:
> > I know how transparent proxies work.  We were discussing the options for
> > ip packet rewriting, if you look back.  Conventionally a transparent
> > proxy makes itself invisible only to the client and the ip redirection
> > happens on the client->proxy side.  What has been suggested is a further
> > ip packet rewrite on the proxy->webserver side so that the webserver
> > sees (and responds to) the client ip address rather than the proxy one.
> 
> OK, I was actually thinking about a transparent HTTP L4 router
> which I wrote at a previous job[1]. This didn't modify the packets
> at all, but it could redirect packets over different ATM interfaces
> depending on the content of the HTTP headers (eg. the URL). Some
> of these ATM interfaces would serve files from local caches even
> though the URL requested would appear to be a remote server. The
> company patented the techniques and sells them to companies that
> make L4 switches. Sorry for the confusion (and my confusion too ...)

Sounds neat but would we be sued for continuing this discussion?

-- 
Bruce

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