squid-nufw-helper is the authentication Single Sign On module for Squid, working with a NuFW firewall. The project allows for transparent authentication of users on a Squid proxy, even if the proxy is a "transparent" one.
Product's homepage
What's New in This Release: [ read full changelog ]
· This release supports reconnecting to MySQL > 5.0, autodetects little/big endian architectures, and has a new "-U" failsafe option so that proxy access is granted even if the database is down or the user cannot be authenticated.