8.2. Nontransparent Proxy Deployment
Nontransparent proxy deployment refers to a deployment in which client software is made aware in some way of the proxy's existence. Then clients send their Web requests to the proxy regardless of the origin servers specified in the URLs. In addition to document retrieval, these clients also delegate DNS resolutions to a proxy: a browser sends to its proxy the entire requested URL, including the host name part, and the proxy then, if needed, resolves the host name into an IP address and retrieves the object from that address. This is different from the actions of clients accessing the Web directly. Such a client itself obtains the origin server's IP address and sends the HTTP request containing just the path ...
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