Proxy server address	Port
sunsite.dsi.unimi.it	80
wwwcache.doc.ic.ac.uk	3128
proxy.telnetwork.it -> 194.20.107.101	8080
proxy.skylink.it	8080
proxy.alpcom.it	1080
www.iprolink.ch -> 194.41.63.1	80
193.45.68.17	80
proxy.inet.it	8080