From Daemon News: "In 2000, on the bsdi-users mailing list, a question was asked about how to do transparent HTTP caching/proxying using BSD/OS. At the time, I hinted at using
the SO_BINDANY socket option in BSD/OS, along with the Squid cache (http://squid.nlanr.net) to implement this function. Recently, I was asked the specifics of
how to do this, so I spent a little time making this technology go. What follows is a short writeup of the work I did to make transparent Web caching work."
February 1, 2001