User Manual Part 2

Glossary of Terms
774 Check Point Safe@Office User Guide
D
DHCP
Any machine requires a unique IP
address to connect to the Internet using
Internet Protocol. Dynamic Host
Configuration Protocol (DHCP) is a
communications protocol that assigns
Internet Protocol (IP) addresses to
computers on the network.
DHCP uses the concept of a "lease" or
amount of time that a given IP address
will be valid for a computer.
DMZ
A DMZ (demilitarized zone) is an
internal network defined in addition to
the LAN network and protected by the
Safe@Office appliance.
DNS
The Domain Name System (DNS)
refers to the Internet domain names, or
easy-to-remember "handles", that are
translated into IP addresses.
An example of a Domain Name is
'www.sofaware.com'.
Domain Name System
Domain Name System. The Domain
Name System (DNS) refers to the
Internet domain names, or easy-to-
remember "handles", that are translated
into IP addresses.
An example of a Domain Name is
'www.sofaware.com'.
E
Exposed Host
An exposed host allows one computer
to be exposed to the Internet. An
example of using an exposed host
would be exposing a public server,
while preventing outside users from
getting direct access form this server
back to the private network.
F
Firmware
Software embedded in a device.
G
Gateway
A network point that acts as an entrance
to another network.
H
Hacking
An activity in which someone breaks
into someone else's computer system,
bypasses passwords or licenses in
computer programs; or in other ways
intentionally breaches computer
security. The end result is that whatever
resides on the computer can be viewed
and sensitive data can be stolen without
anyone knowing about it. Sometimes,
tiny programs are 'planted' on the
computer that are designed to watch out
for, seize and then transmit to another
computer, specific types of data.