What proxy solutions are there?
There are many proxy solutions currently available, both proprietary and open source. Many UK educational institutions are using EZproxy, now owned by OCLC. EZproxy has been specifically designed to provide off-site access to restricted online resources that use IP authentication. Another piece of software used by educational institutions is PAPI. PAPI (Point of Access for Providers of Information) is a system for providing access control to restricted online resources across the Internet.