Installation guide

Glossary
D-3
HA: High Availability – A multiple-server NAC 800 deployment is
mutually supporting. Should one server fail, other nodes
within a cluster will automatically provide coverage for the
affected network segment.
HTML: Hyper text markup language – A language that tells a web
browser how to display the web page.
IE: Internet Explorer
IP: Internet protocol – A protocol by which data is sent from one
computer to another on the Internet.
IPSec: IP security
ISO image file: An image of a CD saved in ISO 9660 standard format.
IT: Information technology
JMS: Java Message Service – a Java-based message interface.
L2TP: Layer two tunneling protocol – An open standard protocol
used to create virtual private networks (VPN).
LAN: Local Area Network
LDAP: Lightweight Directory Access Protocol (LDAP) – A protocol
that is used to look up information from a database that
usually contains information about authorized users and their
privileges.
Load balancing: Load balancing is achieved by an algorithm that spreads the
endpoint testing load across all Enforcement servers in a
cluster.