Just wondering, I had read that some ISP use squid for caching their clients contents, 1k+ users, by default squid have a list of know ports open: 80,443, etc. For a large deployments u know that u have a bunch of users that hit a lot pages per second, and some sites for example they required ports like 8080, 4578 in the url, is difficult for a sysadm to wait for a customer to request to open the port 4578 because some site he use require that port. Here how do u handle this? U open in squid ports 80-65535 or how do u manage this? u wait for the customer complain? Is my curiosity? Thanks.