A program acting on behalf of a person or organization.
Sources:
NIST SP 800-95
from
Web Services Glossary - W3C Working Group Note 11 February 2004
A host-based IPS program that monitors and analyzes activity and performs preventive actions; OR a program or plug-in that enables an SSL VPN to access non-Web-based applications and services.
Sources:
NIST SP 800-113
A host-based intrusion prevention system program that monitors and analyzes activity and performs preventive actions; OR a program or plug-in that enables an SSL VPN to access non-Web-based applications and services.
Sources:
NIST SP 1800-21B
from
NIST SP 800-113