NonStop Servlets for JavaServer Pages (NSJSP) 6.1 System Administrator's Guide

Glossary
NonStop Servlets for JavaServer Pages (NSJSP) 6.1 System Administrator’s Guide—596210-006
Glossary-3
domain
domain. Namespace used to group MBeans that are registered with an MBean server.
DTD. ISee Document Type Definition (DTD).
EJB. ISee Enterprise JavaBeans (EJB)
Enterprise JavaBeans (EJB). Enterprise JavaBeans (EJB) is a Java API developed by
Sun Microsystems that defines a component architecture for multi-tier client/server
systems. EJB systems allow developers to focus on the actual business architecture of
the model, rather than worry about endless amounts of programming and coding
needed to connect all the working parts. This task is left to EJB server vendors.
Developers just design (or purchase) the needed EJB components and arrange them
on the server. Because EJB systems are written in Java, they are platform
independent. Being object oriented, they can be implemented into existing systems
with little or no recompiling and configuring.
Ethernet. A popular local area network (LAN) technology invented at the Xerox Corporation
Palo Alto Research Center. An Ethernet itself is a passive coaxial cable; the
interconnections all contain active components. Ethernet is a best-effort delivery
system that uses CSMA/CD technology. Xerox Corporation, Digital Equipment
Corporation, and Intel Corporation developed and published the standard for 10 Mbps
Ethernet.
fault tolerance. The ability of a HP NonStop system to continue processing despite the
failure of any single software or hardware component within the system.
File Transfer Protocol (FTP). The Internet standard, high-level protocol for transferring files
from one machine to another. Usually implemented as application-level programs, FTP
uses the TELNET and Transmission Control Protocol (TCP) protocols. The server side
requires a web client to supply a login identifier and password before it will honor
requests.
Filter. Provides fine-grained control over what gets logged, beyond the control provided by
log levels. The logging APIs support a general-purpose filter mechanism that allows
application code to attach arbitrary filters to control logging output.
Formatter. Provides support for formatting LogRecord objects. This package includes two
formatters, SimpleFormatter and XMLFormatter, for formatting log records in plain text
or XML respectively. As with Handlers, additional Formatters may be developed by
third parties.
FTP. See File Transfer Protocol (FTP).
gateway. A special-purpose, dedicated computer that attaches to two or more networks and
routes packets from one to the other. In particular, an Internet gateway routes Internet
Protocol (IP) datagrams among the networks to which it is connected. Gateways route
packets to other gateways until they can be delivered to the final destination directly
across one physical network. The term is loosely applied to any machine that transfers
information from one network to another, as in mail gateway.