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460 AlterPath KVM/net Installation, Administration, and User’s Guide
but a given Domain Name points to only one machine. For
example, the domain names: matisse.net, mail.matisse.net,
workshop.matisse.net can all refer to the same machine, but each
domain name can refer to no more than one machine. Usually, all
of the machines on a given Network will have the same thing as
the right-hand portion of their Domain Names (matisse.net in the
examples above). It is also possible for a Domain Name to exist
but not be connected to an actual machine. This is often done so
that a group or business can have an Internet email address
without having to establish a real Internet site. In these cases,
some real Internet machine must handle the mail on behalf of the
listed Domain Name.
Escape Sequence A sequence of special characters that sends a command to a
device or program. Typically, an escape sequence begins with an
escape character, but this is not universally true.
An escape sequence is commonly used when the computer and
the peripheral have only a single channel in which to send
information back and forth. If the device in question is "dumb"
and can only do one thing with the information being sent to it
(for instance, print it) then there is no need for an escape
sequence. However most devices have more than one capability,
and thus need some way to tell data from commands.
Ethernet A LAN cable-and-access protocol that uses twisted-pair or
coaxial cables and CSMA/CD (Carrier Sense Multiple Access
with Collision Detection), a method for sharing devices over a
common medium. Ethernet runs at 10 Mbps; Fast Ethernet runs at
100 Mbps. Ethernet is the most common type of LAN.
Flash Flash refers to a type of memory that can be erased and
reprogrammed in units of memory known as blocks rather than
one byte at a time; thus, making updating to memory easier.
flow control A method of controlling the amount of data that two devices
exchange. In data communications, flow control prevents one
modem from "flooding" the other with data. If data comes in
faster than it can be processed, the receiving side stores the data