HP Email Firewall Appliance Series Uživatelský manuál stáhnout pdf (Strana 146)

146 GLOSSARY

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

Filtering

Allows you to define a pattern to search for on an email header,

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.

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HP Email Firewall Appliance Series Uživatelský manuál Strana 146