We have developed squid based proxy content filter along with iptable-linux as router has nice webuser interface , we searching for type of small machine that suits to our product.
Here are the details:
Software Dependency :apache2 compiled ,sqlite ,PHP , squid-proxy ,squidguard,centos5.3 OS. Hardware Dependency : two lan interface least 20 GB storage min-256 max 2GB RAM.
regards
chetanM