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

 

6

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, "ifax@toshiba.com" 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.

 

 

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Toshiba E1-17063A manual Domain, Sent, Mail Address