Cyclades ACS48 Benutzerhandbuch

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Domain Name Server. The computer you use to access the 

DNS to allow you to contact other computers on the Internet. 
The server keeps a database of host computers and their IP 
addresses.

The unique name that identifies an Internet site. Domain 

Names always have 2 or more parts, separated by dots. The 
part on the left is the most specific, and the part on the right is 
the most general. A given machine may have more than one 
Domain Name 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 e-mail 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. 

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. 

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