From: s.medina@fosterwatson.comTo: jeff@greentechwizards.comSub: Network Security (Help!)Jeff,We have a real problem with network security at our office. The main concern is with the firewall on the router. Some of our new machines can't access the network. Even with the （ 1 ） password, it doesn't seem to work. I think we need to change the permissions settings. We want to deny unauthorized users, but permit our own machines!I'm also looking for a new way to encrypt our email. We're using an outdated SSL connection and we need to （ 2 ）. I'm worried that it can't authenticate communications from our mail server. I tried to check the （ 3 ） log, but I couldn't log in.Finally, I want to update our anti-virus software. Some of my employees found malware on their machines. We're worried about viruses entering our （ 4 ） network. How much damage could a （ 5 ） cause to our network? I'd really appreciate if you could come down to the office. Does Friday afternoon work for you?Thanks,Sally