Penetration Testing and Network Defense

See DES.

Distributed denial-of-service attack. An attack involving multiple hosts in an attempt to cause loss of service availability to users.

See DMZ.

See DoS.

Data Encryption Standard. A method of bulk, symmetric data encryption which uses a 64-bit key to every 64-bit block of data but only has an effective key strength of 56 bits.

Dynamic Host Control Protocol. A communications protocol which allows the assignment of IP addresses and other network configuration in an organization's network to be automated.

Dynamic Hypertext Markup Language. A technique for creating interactive websites by using a combination of static language HTML, a client-side scripting language, and the style definition language Cascading Style Sheets.

A password-guessing technique that usually involves use of a precompiled word list.

See DDoS attack.

Demilitarized zone. A network area that sits between the internal network of an organization and (usually) the Internet.

Domain Name System. A system that stores and translates the names of network nodes to their corresponding IP addresses.

A server in Windows networking that is responsible for servicing authentication requests to the Windows domain.

See DNS.

Denial of service. An attack on a computer system or network that typically causes the loss of network connectivity and services by consuming the entire bandwidth or overloading the available resources of the victim system.

See DHCP.

See DHTML.