User guide

172 WatchGuard Firebox X Edge
external interface
An interface connected to the external network that presents the security
challenge, typically the Internet.
external network
The network presenting the security challenge.
failover
Configuration that allows a secondary machine to take over in the event of a
failure in the first machine, allowing normal use to return or continue.
failover logging
A process in which contact is automatically established with a secondary log
host, in the event that the Firebox cannot communicate with the primary log
host.
fail-shut mode
A condition in which a firewall blocks all incoming and outgoing traffic in the
event of a firewall failure. This is the opposite of fail-open mode, in which a
firewall crash opens all traffic in both directions. Fail-shut is the default failure
mode of the WatchGuard Firebox System.
fast Ethernet
An Ethernet networking system that transmits data at 100 Mbps, based on the
Ethernet 802.3 standard.
field
An area in a form or Web page in which to enter or view specific information
about an individual task or resource.
file extension
A period and up to three characters at the end of a file name. The extension can
help identify the kind of information a file contains.
file server
A dedicated network computer used by client computers to store and access
files.
filtering process
An Ethernet switch or bridge process that reads the contents of a packet and
discards it if it does not need to be forwarded.
filtering rate
The rate at which an Ethernet device can receive packets and drop them without
any loss of incoming packets or delay in processing.
filters
Small, fast programs in a firewall that examine the header files of incoming
packets and route or reject the packets based on the rules for the filter.