Re: [squid-users] squid, cache_peer and client's IP address

Colin Campbell wrote:
>
> Hi,
>
> On Thu, 22 Aug 2002, Ziaur Rahman wrote:
>
> >
> > Hi,
> >
> > I have a squid (Version 2.4.STABLE1) server which only redirects the
> > requests to a NetCache server. The following will clear everyone out:
> >
> > cache_peer xxx.xxx.x.xxx parent 8080 3130 no-query proxy-only
> >
> > Now, the problem is my squid server modifies the header information and
> > changes the source (client's) IP address to its own address when it forwards
> > to the NetCache. Is there a way to tell squid not to modify the client
> > address but to keep it unchanged? My forwarded_for is on. And,
> > anonymize_headers are Default (i.e. None).
>
> A proxy does not forward packets. When you use a proxy there are two TCP
> connections. One from your browser to the proxy and one from the proxy to
> the server (or parent proxy). Since the proxy establishes a new connection
> the server or parent proxy will only ever see the proxy's IP address.

And to hint to parent proxies or origin web servers who the real client
is Squid adds a custom HTTP header with the client IP address

  X-Forwarded-For: 192.168.1.57

Regards
Henrik
Received on Thu Aug 22 2002 - 02:53:18 MDT