Novell ZENWORKS NETWORK ACCESS CONTROL 5.0 - 09-22-2008 User Manual page 526

authenticator
A component of 802.1X that is the access point, such as a switch, that prevents access
when authentication fails. The authenticator can be simple and dumb.
Authentication server
A component of 802.1X that is the server that authenticates the user credentials; usually a
Remote Authentication Dial-In User Service RADIUS) server.
BIOS
Basic Input/Output System
backdoor
A disguised or hidden entry point in a software program or system. An open backdoor can
be intentional (for maintenance use), or unintentional. If a backdoor is discovered,
malicious users or software can gain entry and cause damage.
blacklist
A list of devices or endpoints that are denied access to a system or are denied privileges.
In Novell ZENworks Network Access Control, endpoints and domains that are always
quarantined.
CA/PKI
Certificate Authority/Public Key Infastructure
cache
A location where information is stored that can be accessed quickly. This location can be in
memory or in a file.
CD
Compact disc
CHAP
Challenge-handshake Authentication Protocol — A protocol used to authenticate users.
CIDR
Classless InterDomain Routing — A method of specifying networks and subnetworks
(subnets) that allows grouping and results in less router overhead.
client
A computer that requests services from another (server).
cluster
A logical grouping of ESs.
compliance
Meets defined standards or conditions.
CSR
Certificate Signing Request — A request sent by a system when applying for a public key
certificate.
526 Novell ZENworks Network Access Control Users Guide