Glossary

C

client: A device or program that uses shared resources from another computer, called a server. In the context of the Agent, client refers to a Sygate Security Agent running on a device that reports to a server.

computers: A personal computer, laptop, or workstation on which users perform work. In an enterprise environment, computers are connected together over a network.

D

demilitarized zone (DMZ): A security measure used by a company that can host Internet services and has devices accessible to the Internet; the DMZ is an area between the Internet and the internal network that prevents unauthorized access to the internal corporate network using a firewall or gateway.

Denial of Service (DoS): A network-based attack that is characterized by an explicit attempt by an intruder to prevent legitimate users of a service from using that service. See also Denial of Service Checking.

Denial of Service Checking: An advanced setting on the Agent that instructs the Agent to check for incoming traffic using known Denial of Service (DoS) techniques.

DES: See Data Encryption Standard (DES).

destination IP address: The IP address of the computer that is receiving packets of information.

destination port: The port of the computer that is receiving packets of information.

DHCP: See Dynamic Host Configuration Protocol (DHCP).

directory server: Software that manages users’ accounts and network permissions. Active Directory is an example of a directory server accessed using Lightweight Directory Access Protocol (LDAP). See also Active Directory, Lightweight Directory Access Protocol (LDAP).

DLL: Dynamic link library, a list of functions or data used by Windows applications. Most DLLs have a file extension of .dll, .ocx, .exe, .drv, or .fon.

DLL authentication: The ability to validate shared or application-specific dynamic link libraries (DLLs) and ensure the integrity of applications. An Agent can be instructed to allow or block known DLLs. An added level of protection can also be enabled to block DLLs from being dynamically allowed when an application is executed. See also application authentication, application fingerprint, DLL, DLL fingerprint.

53