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.

Discovery Domain

A Discovery Domain (DD) is a security and management mechanism used by iSNS Servers to administer access and connectivity to iSCSI initiators or iSCSI targets (storage nodes) in an iSCSI SAN.