User guide

174 WatchGuard Firebox X Edge
hash code
A unique, mathematical summary of a document that serves to identify the
document and its contents. Any change in the hash code indicates that the
document’s contents have been altered.
header
A series of bytes at the beginning of a communication packet that provide
identification information about the packet such as its computer of origin, the
intended recipient, packet size, and destination port number.
Help system
A form of online information about a software or hardware system.
hexadecimal
A numbering system containing 16 sequential numbers as base units before
adding a new position for the next number. Hexadecimal uses the numbers 0–9
and the letters A–F.
hierarchical trust
A graded series of entities that distribute trust in an organized fashion,
commonly used in ANSI X.509 to issue certifying authorities.
High Availability
A WatchGuard Firebox System option that enables the installation of two
Fireboxes on one network in a failover configuration. At any given moment, one
Firebox is in active mode while the other is in standby mode, ready to take over
if the first box fails.
Historical Reports
A WatchGuard Firebox System application that creates HTML reports displaying
session types, most active hosts, most used services, and other information
useful in monitoring and troubleshooting a network.
HMAC
A key-dependent, one-way hash function specifically intended for use with MAC
(Message Authentication Code), and based upon IETF RFC 2104.
home page
The first page of a Web site used as an entrance into the site.
honeypot
Programs that simulate one or more network services that you designate on your
computer's ports. An attacker assumes you're running vulnerable services that
can be used to break into the machine. A honeypot can be used to log access
attempts to those ports including the attacker's keystrokes. This could give you
advanced warning of a more concerted attack.
host
A computer connected to a network.