3Com 3CR3MFA-92 User Manual page 146

146 G
LOSSARY
IP Internet Protocol. IP is a layer 3 network protocol that is the standard
for sending data through a network. IP is part of the TCP/IP set of
protocols that describe the routing of packets to addressed devices.
IP address Internet Protocol address. A unique identifier for a device attached to a
network using TCP/IP. The address is written as four octets separated
with periods (full-stops), and is made up of a network section, an
optional subnet section and a host section.
Mailer-Daemon The name of a process running on the email server that may send out
status messages.
Mail Mapping Maps an external email address to a different internal email address
and vice versa.
Mail Route Defines an email domain that you accept mail for, and the internal mail
server to deliver the email.
Malformed Email An email message not structured according to standards. Malformed
email can be used to cause denial of service attacks and buffer
overruns.
MIME Multipurpose Internet Mail Extension. A standard for identifying the
type of data contained in a file based on its extension.
MX Mail Exchanger. A type of DNS record indicating the address of the
email server.
NIC Network Interface Card. A circuit board installed in an endstation that
allows it to be connected to a network.
NTP Network Time Protocol. A protocol for time synchronization between
systems on a network.
Pattern Based Message Allows you to define a pattern to search for on an email header,
Filtering envelope, or body.
PBMF See Pattern Based Message Filtering.
Ping A utility used to verify connectivity over a network by sending ICMP
ping packets to another host.
Protocol A set of rules for communication between devices on a network. The
rules dictate format, timing, sequencing and error control.