My anonomiser lists HTTP_VIA (primary for proxy detection), HTTP_FORWARDED, HTTP_USER_AGENT_VIA, HTTP_CACHE_INFO, HTTP_CACHE_CONTROL, and HTTP_(PROXY-)CONNECTION:close as variables that proxies might be using.

It also has HTTP_CLIENT_IP and HTTP_X_FORWARDED_FOR_IP as things it can add itself.

In reply to Re: Faking an ip? by John M. Dlugosz
in thread Faking an ip? by EvanK

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