I would like to know if it is possible to block Internet access either by a specific username or by machine name. Currently all PC's are connected to a corporate LAN and connect to the Internet through a PIX 501. I think that the PIX can block by specific IP address, but we are using DHCP instead of static IP's.
Just wondering if there is anything that is built into Windows XP Pro SP2 that will block access so that the user cannot connect.
I thought about a 3rd party proxy server, but I feel that may be overkill for our organization.