Is a proxy server a firewall?
A proxy server is a form of a firewall. In legal terms, a proxy is someone who goes and performs some action on your behalf. A proxy server performs network transactions on your behalf. The most common use for this is a Web-proxy server. A Web-proxy will take requests from users' Web browsers, get the Web pages from the Internet, and return them to the user's browser. Many times, a proxy server also performs authentication to see who is requesting the Web pages and also logs the pages that are requested and the user they are from.
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