Toshiba E1-17063A - Manuel (Page 134)

6-3
6
D
Default Gateway
Default Gateway commonly refers to a gateway address of the router. The router is a device that
connects between a LAN and other LANs.
DHCP, dynamic host configuration protocol
DHCP is a protocol for the purpose of assigning dynamic IP addresses to devices on a network. Using
DHCP, the devices obtains the different IP address every time the device connects to the network.
Domain
Domain defines a group of computers and devices on the network. Within the Internet, domains are
defined by the IP address or DNS name, such as "toshiba.com".
DNS, domain name system (service)
DNS is an Internet service that manages the translations between IP addresses and domain names.
Instead of identifying a host with an IP address, the host can be identified with alphabetic name using
the DNS. Within the Internet, DNS is commonly used to identify a host. For example, "www.toshiba.com"
is a DNS domain name that assigned using the DNS.
DSN, delivery status notification
DSN is a system to notify the electric mail sender of the status of the message that been sent. The
status, such as failed delivery, delayed delivery, successful delivery, or the gateway of a message into
an environment that may not support DSNs, is notified when an electric mail with the DSN request is
sent.
E
E-mail, electric mail
E-mail is the transmission of messages for over communications network, enables to transfer the
electric files stored on a disk between most mainframes and computers on network.
E-mail Address
A name that identifies an electric post office box in a mail server within the Internet. E-mail address
consists of two elements, user name that identifies the post office box in a mail server and host name
that identifies the mail server, and they are divided by "@". Within the Internet, usually the domain
name is used for the host name. For example, "[email protected]" is an E-mail address. "ifax" is a
user name, and "toshiba.com" is the domain name that identifies the mail server.
ESMTP, extended simple mail transfer protocol
ESMTP is defined as the service extensions based on SMTP, for the purpose of providing some
improvements from SMTP. Enhancing SMTP, ESMTP provides a new command to support the DSN
and MDN. (Refer to "SMTP")
F
FQDN, fully qualified domain name
FQDN is a domain name that completely identifies the host computer and consists of a host and all
level of the domain name. FQDN is always starts with a host and ends with top-level domain. For
example, when the host name is "host1" and the domain name is "toshiba.com", the FQDN will be
"host1.toshiba.com".
FTP, file transfer protocol
FTP is a protocol commonly used for transferring files on the Internet.