This guide will shown you how to installing and configuring proxy server with lusca in Ubuntu Server 12.04. Lusca is a fork of the Squid-2 development tree. The Lusca project aims to fix the shortcomings in the Squid-2 codebase whilst maintaining the the Squid-2 functionality and stability. This project provides existing Squid-2 users with a migration path to an actively developed codebase and new users with a stable, predictable software product to deploy.- lusca.org