Some sites such as mon-ip.com allows to see the internal IP (javascript enabled). It's worrying when using some vpn (with unique external ip address), because the internal iP is what identify you inside the vpn (10.x.y.z).
I noticed that when using privoxy, the site mon-ip.com failed to see my internal IP, and write a very nice FORBIDDEN instead.
So, how to get the same result without having to use privoxy ?
EDIT:
Anonymous Surfing is able to grab my internal IP, with Privoxy enabled and Javascript disabled.
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