I used some spare parts and installed ipcop on a pc to act as my kids connection to the world. Squid 2.5stable14 is packaged with ipcop and I set it up as a transparent proxy and then blocked everything but outbound 80/443 and then restricted the web-traffic to a whitelist of sites we will let them go to. Our school system is providing access to a tool called netTrekker which is like a google'fied whitelist. The problem is that Nettrekker is not a proxy. It provides links back when searching for various research data. I would like to be able to create a rule that allows my kids to trust pages from the netTrekker.com service without needing to whitelist their entire directory. The only way I can think of doing this is an acl that would check the referer and if it is from netTrekker.com allow the actual link that was refered. I checked the squid book, the wiki and some google searches on "squid acl referer" but only found data on the referer logs and acl New acl types * referer_regex (match Referer headers), But no examples to see how to set this up. Anyone have some examples? Thanks Greg