Cyclades User's Guide User Manual

Page 483

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Server Farm

A collection of servers running in the same location (see
Cluster).

SMTP

Simple Mail Transfer Protocol. Specifies the format of messages
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).

The Trap Definition vary with the SNMP Version (which defines
the messaging format), but the information contained in these are
essentially identical. The major difference between the two
message formats is in identifying the events.

SSH

Secure Shell. A protocol which permits secure remote access over
a network from one computer to another. SSH negotiates and
establishes an encrypted connection between an SSH client and
an SSH server.

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