Network Security Glossary
A list of frequently used terms
This glossary contains a list of terms, abbreviations, and acronyms frequently used when discussing networks, security, firewalls, and WatchGuard products.
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L
- LAN (local area network)
- A computer network that spans a relatively small area, generally confined to a single building or group of buildings.
- LDAP (Lightweight Directory Access Protocol)
- A protocol that helps manage information about authorized users on a network such as names, phone numbers, addresses, and what a user is and is not allowed to access. LDAP is vendor- and platform-neutral, working across otherwise incompatible systems.
- LED (light-emitting diode)
- A small indicator light on a networking device that indicates status and other information about the device. For example, an LED on the WatchGuard SOHO blinks to indicate when the SOHO is receiving data.
- link
- See hyperlink.
- Linux
- An open source version of the UNIX operating system.
- LiveSecurity® Service
- See WatchGuard LiveSecurity Service.
- log host, logging host
- A designated device for receiving and storing a record of events from another device or program (such as a Firebox, SOHO, or ServerLock).
- LogViewer
- A WatchGuard Firebox® System Manager application for viewing Firebox log files.
- loopback interface
- A special type of interface that allows you to make network connections to yourself, using IP. This convention, which all Internet-aware applications expect and utilize, has a variety of purposes, including routing and application testing.
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