Cyclades AlterPath KVM 16, Руководство пользователя

Страница: 205 / 206

Glossary
AlterPath KVM Manual Glossary-5
run on a computer. If there was only a single network
application running on the computer, there would be no need
for port numbers and the IP address only would suffice for
addressing services. However, several applications may run
at once on a particular computer and we need to differentiate
among them. This is what port numbers are used for. Thus, a
port number may be seen as an address of an application
within the computer.
RADIUS Remote Authentication Dial-In User Service) is a client/
server protocol and software that enables remote access serv-
ers to communicate with a central server to authenticate dial-
in users and authorize their access to the requested system or
service. RADIUS allows a company to maintain user profiles
in a central database that all remote servers can share.
SMTP Simple Mail Transfer Protocol. Specifies the format of mes-
sages that an SMTP client on one computer can use to send
electronic mail to an SMTP server on another computer.
SNMP Short for Simple Network Management Protocol , a set of
protocols for managing complex networks. The first versions
of SNMP were developed in the early 80s. SNMP works by
sending messages, called protocol data units (PDUs), to
different parts of a network.
SNMP-compliant devices, called agents, store data about
themselves in Management Information Bases (MIBs) and
return this data to the SNMP requesters.
(Source: Webopedia)
SNMP Traps Notifications or Event Reports are occurrences of Events in a
Managed system, sent to a list of managers configured to
receive Events for that managed system. These Event
Reports are called Traps in SNMP. The Traps provide the
value of one or more instances of management information.
Any SNMP enabled Device generates Fault Reports (Traps)
that are defined in the MIB (which the SNMP Agent has
implemented).