McAfee FIREWALL 2.1-GETTING STARTED Getting Started page 35

Glossary
Internet Relay Chat. A service that lets people on the Internet share a typed
conversation. Whatever a person typed is sent to other people in the "chat
group".
The risk here is that people might become hostile and try to "nuke" you or send
you unpleasant email. Consider NetNanny to screen the messages that are
sent in IRC.
ISDN
Integrated Services Digital Network
ISP
Internet Service Provider, the company that sells you access to the Internet.
Listening
TCP connections are made to a "listening" port that is ready to accept an
incoming connection.
Local (address or port)
Refers to your machine, as opposed to a remote machine.
Log File
A record kept to track activity. The log file helps monitor what connections
your computer has made and where unauthorized access (may have)
originated.
Menu
A list of commands that are available. If a command is in gray, it is not
available.
Message Box
A message window that appears briefly to provide information to the user.
Modem
A device that sends and receives data over a connection, most commonly over
a telephone line, cable, ADSL or ISDN.
NetBEUI
NetBIOS Extended User Interface. A local-area protocol that operates
underneath the NetBIOS interface. McAfee Firewall does not currently filter
NetBEUI.To allow it, you must allow all non-IP protocols.
NetBIOS
Getting Started 35