Re: Virgin Media Phorm Webwise Adverts [Updated: See Post No. 1, 77, 102 & 797]
Using the same analogies as my trace route explanation:
A proxy opens your letter, reads it, then rewrites it and puts it in a new envelope with the proxies return address. When a reply is sent, it gets sent to the proxy which again opens it, rewrites it and sends it in a new envelope to you.
A normal proxy only opens letters that are actually sent to its address. Similar to using care /off on a letter. It is also honest when it forwards replies to you, that they have come from it. A transparent proxy on the other hand opens letters regardless of where they are addressed to. It also pretends that the reply it is forwarding back to you came direct, when it didn't. The proxies used as part of phorm are even less truthfull than transparent proxies.
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