Watchguard Firebox X20E Reference Manual page 68

Java applet
A Java applet is a program written in the Java programming language that can
be included on an HTML page, much in the same way an image is included.
When you use a Java technology—enabled browser to view a page that
contains an applet, the applet's code is transferred to your system and carried
out by the browser's Java virtual machine (JVM).
LAN (local area network)
A computer network that spans a relatively small area generally confined to a
single building or group of buildings.
link
See hyperlink.
LiveSecurity Event Processor (LSEP)
A program that controls notification and logging on the log hosts. It provides
critical timing services for the Firebox and includes its own GUI.
LiveSecurity Inbox
The client software for the WatchGuard LiveSecurity Service.
LogViewer
As a part of the Control Center, the LogViewer displays a static view of the
Logdb file.
loopback interface
A pseudo interface that allows a host to use IP to talk to its own services. A
host is generally configured to trust packets coming from addresses assigned
to this interface. The Class A address group 127.0.0.0 has been reserved for
these interfaces.
LSEP
See LiveSecurity Event Processor.
mail server
Refers to both the application and the physical machine tasked with routing
incoming and outgoing electronic mail.
Management Station
The computer on which you run the WatchGuard LiveSecurity System
Control Center and Policy Manager; sometimes referred to as the
administration host.
network address translation (NAT)
Network address translation hides internal network addresses from hosts on
an external network.
MAC address
Media Access Control address that is unique to your computer, and is used to
identify its hardware.
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