From Lunarpages Web Hosting Wiki
Can I use the server as an anonymous proxy for other users and myself?
No, we do not allow CGI proxy (such as nph-proxy.cgi) to run on our servers as this is a shared environment and affects others since the server would be functioning as an anonymous proxy. You may not use this script via open access pages nor even behind those that are password protected.
If you require a proxy, please use a public one such as the following: