They cache stuff, so reduces downloading/bandwidth as the proxy can serve the same cached page to local users without hitting the net. They can also be used help control access to sites for users within a network.
Aye, I'm familiar with the purpose, just not the actual mechanics of same. Since my computer isn't on a network, why it thinks it's using one is a mystery.
no subject
Date: 2007-04-12 06:18 pm (UTC)<shuffles off to read up>
no subject
Date: 2007-04-13 12:04 am (UTC)no subject
Date: 2007-04-16 01:30 pm (UTC)