Installing a proxy software to a server for encrypted web surfing?

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http://www.linuxquestions.org – Hello; I've a server which is being used as a web server and I'd like install a proxy server software because in my university a lot of websites are banned, even youtube. But normal proxy server is no good. The university system checking websites by header information. So even if you change your dns, or trying to connect directly to the ip, it terminates because they are checking the data flowing over connection. So I need encrypted proxy service. I tried tinyproxy but couldn't be able to configure it as I want. Is it possible to do what I want? Is there anything you know to guide me about this issue? (HowTos)