Watchguard Firebox X1000, Reference Manual

Page: 119 / 264

Reference Guide 107
CHAPTER 9
Glossary
This glossary contains a list of terms, abbreviations, and acronyms
frequently used when discussing networks, firewalls, and WatchGuard
products.
access control
A method of restricting access to resources, allowing access only
to privileged entities.
active mode FTP
One of two ways an FTP data connection is made. In active mode,
the FTP server establishes the data connection. In passive mode,
the client establishes the connection. In general, FTP user agents
use active mode and Web user agents use passive mode.
activity light
An LED (light-emitting diode) that verifies that a piece of
hardware is working, communicating with the network, and
transmitting data.
address learning
A method by which hubs, switches, and routers determine the
unique address number for each node on a network to enable
accurate transmission to and from each node.