Technical data

UUCP
See UNIX-to-UNIX Copy Program.
virtual circuit
The network service that allows two processes to communicate as if they were
directly connected, regardless of the structure of the underlying subnet.
WAN
See wide area network.
well-known port
A port number assigned for use by a specific network application for connections
made with either UDP or TCP. Every implementation of TCP/IP that provides
well-known services provides them with the well-known port numbers from 1 to
1023. The Internet Assigned Numbers Authority (IANA) manages the well-known
port numbers.
wide area network (WAN)
A network, usually constructed with serial lines, which covers large geographic
areas.
wildcarding
A method for generalizing parts of a OpenVMS file designation to encompass a set
of files by substituting a symbol to represent one or more characters. OpenVMS
wildcarding symbols are the percent sign (%) for a single character, and the
asterisk (*) for a character string of any length, including zero.
window
A 2-octet field in a TCP header indicating the number of data octets (relative to
the acknowledgment number in the header) that the sender is currently willing
to accept.
write access
An access right that grants users the ability to change data.
zone
A subdivision of the Internet hierarchy that starts at a domain and extends down
to leaf domains (individual host names) or to domains where other zones begin;
usually represents an administrative boundary. Contrast with domain.
zone file
A master name server file that describes the domain names for which the server
has authority.
Acronyms
The following table shows Compaq TCP/IP Services for OpenVMS acronyms and
other acronyms related to open networking:
Acronym Meaning
ACK acknowledgment
ACL access control list
ACP ancillary control process
ANSI American National Standards Institute
API application programming interface
ARP Address Resolution Protocol
Glossary–48