Is it possible to run 2 squids on the same server? I have an existing proxy that has ncsa auth via direct connections to the proxy. I would also like to route port 80 traffic from a VPN through a transparent proxy but without any authentication. Is this possible? I'm guessing I would have to block off all connections to this squid through iptables and only allow traffic from the VPN. It would also have to be a transparent proxy?