For the purposes of this document the following terms and definitions as well as the terms and definitions given in OPC 10000-1, OPC 10000-2, OPC 10000-3, OPC 10000-4, OPC 10000-6 and OPC 10000-9 apply.
Note 1 to entry: Devices have hardware based mechanisms, such as a TPM, to protect Private Keys.
a physical address available on a network that allows Servers to initiate a reverse connection.
a software application, or a set of applications, that stores and organizes information about resources such as computers or services.
a Server that provides numerous services related to discovery and security management.
Note 1 to entry: a GDS may also be a CertificateManager.
Note 2 to entry: a GDS may also be a KeyCredentialService.
Note 3 to entry: a GDS may also be a AuthorizationService.
a Server that provides centrally managed capabilities needed for a system.
a unique number assigned to a network interface that allows Internet Protocol (IP) requests to be routed to that interface.
Note 1 to entry: An IPAddress for a host may change over time.
Note 1 to entry: a user name and password is an example of a KeyCredential.
Note 1 to entry: Servers normally register with the LDS on the same host.
a LocalDiscoveryServer that includes the MulticastExtension.
a network that allows multicast packets to be sent to all nodes connected to the network.
Note 1 to entry: a MulticastSubnet is not necessarily the same as a TCP/IP subnet.
a named set of rights which cannot be expressed as Permissions granted on Nodes.
a short identifier which uniquely identifies a set of discoverable capabilities supported by an OPC UA Application.
APIApplication Programming Interface
CRLCertificate Revocation List
CSRCertificate Signing Request
DERDistinguished Encoding Rules
DHCPDynamic Host Configuration Protocol
DNSDomain Name System
ESTEnrolment over Secure Transport
GDSGlobal Discovery Server
IANA The Internet Assigned Numbers Authority
LDAPLightweight Directory Access Protocol
LDSLocal Discovery Server
LDS-MELocal Discovery Server with the Multicast Extension
mDNSMulticast Domain Name System
NATNetwork Address Translation
PEM Privacy Enhanced Mail
PFXPersonal Information Exchange
PKCSPublic Key Cryptography Standards
SHA1Secure Hash Algorithm
SSLSecure Socket Layer
TLSTransport Layer Security
TPMTrusted Platform Module
UA Unified Architecture
UDDIUniversal Description, Discovery and Integration