Symantec 10521146 - Network Security 7120 Administration Manual page 343

daemon
data rate
data transfer
data transmission
data-driven attack
decode
decrypt
dedicated device
denial of service (DoS)
attack
deployment
DES (Data Encryption
Standard)
dial
dialer
dialog box
A program that runs continuously and exists for the purpose of handling periodic service
requests that a computer system expects to receive. The daemon forwards the requests to
other programs (or processes) as appropriate. A typical example of a daemon can be seen
on Web servers. Each server has a Hypertext Transfer Protocol Daemon (HTTPD) that
continually waits for requests to come in from Web clients and their users.
The speed at which information is moved from one location to another. Data rates are
commonly measured in kilobits (thousand bits), megabits (million bits), and megabytes
(million bytes) per second. Modems, for example, are generally measured in kilobits per
second (Kbps).
The movement of information from one location to another. The speed of transfer is called
the data rate or data transfer rate.
The electronic transfer of information from a sending device to a receiving device.
A form of intrusion in which the attack is encoded in seemingly innocuous data. It is
subsequently executed by a user or other software to actually implement the attack.
To convert encoded text to plain text through the use of a code.
To convert either encoded or enciphered text into plain text.
A special-purpose device. Although it is capable of performing other duties, it is assigned
to only one.
A type of attack in which a user or program takes up all of the system resources by
launching a multitude of requests, leaving no resources and thereby denying service to
other users. Typically, denial of service attacks are aimed at bandwidth control.
The installation of a network of security products, such as Symantec Network Security
(nodes and Network Security console), Symantec Network Security 7100 Series appliances,
and Symantec Network Security Smart Agents to form an enterprise security
environment.
A widely-used method of data encryption using a private (secret) key that was judged so
difficult to break by the U.S. government that it was restricted for exportation to other
countries. There are 72,000,000,000,000,000 (72 quadrillion) or more possible encryption
keys that can be used. For each given message, the key is chosen at random from among
this enormous number of keys. Like other private key cryptographic methods, both the
sender and the receiver must know and use the same private key.
To initiate a connection via LAN, modem, or direct connection, whether or not actual
dialing is involved.
A program that uses your system, without your permission or knowledge, to dial out
through the Internet to a 900 number or FTP site, typically to accrue charges.
A secondary window containing command buttons and options available to users for
carrying out a particular command or task.
Glossary 343