Glossary-2 Netra Internet Server 3.1 User’s Manual—September 1996
dynamic router
A router that relies on information broadcast from other routers to update its
routes to reflect changes in the network topology. The router also broadcasts
this information to other dynamic routers.
e-mail address
Electronic Mail Address (also referred to as “mail address” in this manual). An
e-mail address is composed of three parts: the user name (the name of the
person who receives the mail), the host name (the system on which that user
has an account) and the domain name (the domain in which the system
resides). The user name is separated from the host name by an at sign (@). The
host name and domain name are separated by a period (for example,
user@host.domain.com).
Ethernet
A network protocol that broadcasts information to all the hosts on the network.
The information is accepted by the intended recipients and discarded by the
other hosts.
firewall
A logical border that protects the local network against intrusion from other
networks. A firewall can monitor or prohibit connections to and from specified
services or hosts.
FTP
File Transfer Protocol. A protocol that allows files to be copied between
systems connected to a TCP/IP network independent of the operating systems
or architectures of the hosts involved in the file transfer.
hexadecimal number
A number expressed in base 16. It is composed of the characters 0-9, a-f, and
A-F.
host address
An assigned number that uniquely identifies each computer connected to a
TCP/IP network. The address consists of two parts: a network number and a
host number. The network number identifies the network to which the
computer is connected and the host number identifies the computer on that
network. The host address is composed of four integers separated by periods.
The first integer must be in the range 0-223, the second and third integers in
the range 0-255 and the fourth integer in the range 1-254 (for example,
129.144.0.1).
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