I have a need to install SQUID Proxy and Caache for a not for profit entity a charity organization. I have installed both CENTOS5.z and UBUNTU 9.4. The issue I am having is following UBUNTU install I try to start SQUID installation by issuing "sudo apt-get install squid" however, apt message comes back with module library not found. I also noticed the installed modules don't show SQUID as installed item. I do select LAMP, MYSQL, SSH Server and DNS server.