I am looking into building a Linux proxy server with filter. I am familiar with Clarkconnect (an all in one easy setup version of Linux) but i would like something that I can customize and also manage via the web. Does anyone know of any good references out there for doing this? Biggest thing I want to customize it the "this page is blocked" screen when a website is blocked by the filter. I am running Ubuntu on my server and I would like to stick with that.