Firewalls, explained. A firewall is like a bouncer for your internet activity, creating a security barrier between your home network and unwanted intrusion from the internet at large.

OK, I wanna set up a firewall/proxy server for use on my personal network. I say personal because I'm already wired to my school's netork and I'm sick of getting hacked, ping bombed, etc etc ...

“If a firewall disappears in the physical world, somebody’s going to notice.” Virtual firewalls will also require rethinking on the part of network and server teams within organizations.

The Windows Security Firewall and network protection area can be hidden from users of the PC. This can be useful if you don’t want them to see or have access to this area.