To my knowledge it can't be done at the same level as netfilter, but anyone would like to know how to use Squid for this, then email me with the subject "User access via Squid" or something like that. Regards, Justin Porteous IT Administor Mercedes Datakor PTY LTD Tel (011) 654-9030 Fax (011) 654-9200 Cell (082) 346-6600