The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.


A group of computers or devices that share a common directory database and are administered as a unit. On the Internet, domains organize network addresses into hierarchical subsets. For example, the .com domain identifies host systems that are used for commercial business.

The Symantec Policy Manager can be organized into segments called domains (distinct from networking domain names). Each domain contains a set of clients that are administered by a domain administrator who has a limited view of the Symantec Policy Manager console (no Servers tab and sees only clients in his domain). Each domain can represent a division, department, separate company, or other isolated segment of users. See also domain name, domain administrator.

A running virtual machine.