Configuring and Managing MPE/iX Internet Services (MPE/iX 6.5)

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and resolves IP addresses to IEEE 802.3
addresses.
process A single instance of a program
that is being executed by the operating
system, also known as a task.
protocol A set of rules that enables two or
more data processing entities to exchange
information. In networks, protocols are the
rules and conventions that govern each
layer of network architecture. They define
what functions are performed and how
messages are exchanged.
protocols file A file that contains a list of
protocols known to the system, plus the
identification number and one or more
aliases for each. See also protocol.
PROTOCOL.NET.SYS The protocols file,
described above.
R
relay Using one node on an internetwork
to pass information through to another
node or nodes. A relay entry in the bootpd
configuration file, for example, provides the
information necessary to forward, or relay,
bootstrap protocol requests to one or more
bootp servers.
remote host The host system from which
you, as a client, are requesting service.
remote node A node on an internetwork
other than the node you are currently using
or referring to.
RSLVSAMP.NET.SYS Sample
initialization file for the domain name
resolver.
RESLVCNF.NET.SYS An initialization
file for the domain name resolver. It
contains information needed by the
network to determine how to resolve a
domain name to an IP address.
S
server A node on a network or
internetwork that provides on-demand
service to requesting clients.
services file The file which associates
official service names and aliases with the
port number and protocol the services use.
In the HFS name space, this file is
/etc/services.
SERVICES.NET.SYS The services name
file, described above.
socket A special kind of file that uniquely
identifies one end point of an Internetwork
connection. A socket specifies the protocol
being used (for example TCP) the
Internetwork address (for example
192.44.244.7) and the integer identifiying
the process (for example 377). A socket pair
completely specifies the two processes that
make up an Internetwork connection.
stream services A type of service that
uses Transmission Control Protocol (TCP)
to exchange information on an
internetwork. Stream services rely on an
established,known connectionbetween two
systems, client and host, similar to a leased
or dedicated phone line between two
parties.
stream socket A type of socket that is
used to establish stream services between
two systems.
subnet Another name for a network,
especially if the network is part of an
internetwork. The word subnet is also a
synonym for intranet.
subnet mask A grouping of bits that
determines which bits of the IP address
will be used to define a subnetwork. The
subnet mask is configured using the
NMMGR utility and specified in the same
format as an IP address.