iTP Secure WebServer System Administrator's Guide (iTPWebSvr 5.1+)

Glossary
iTP Secure WebServer System Administrator’s Guide—522659-001
Glossary-5
Simple Mail Transfer Protocol (SMTP)
Simple Mail Transfer Protocol (SMTP). The Internet standard protocol for transferring
e-mail messages from one machine to another. SMTP specifies how two mail systems
interact, and specifies the format of control messages the two mail systems exchange to
transfer mail.
SSL. See Secure Sockets Layer (SSL)
.
subnet address. An extension of the Internet addressing scheme that allows a site to use a
single Internet address for multiple physical networks. Outside of the site using subnet
addressing, routing continues as usual by dividing the destination address into an
Internet portion and local portion. Gateways and hosts inside a site using subnet
addressing interpret the local portion of the address by dividing it into a physical
network portion and host portion.
subsystem. The software and/or hardware facilities that provide users with access to a set of
communications services.
Transmission Control Protocol (TCP). The Internet standard transport-level protocol that
provides the reliable, full-duplex stream service on which many application protocols
depend. TCP allows a process on one machine to send a stream of data to a process on
another. It is connection-oriented, in the sense that before transmitting data participants
must establish a connection. Software implementing TCP usually resides on the
operating system and uses the Internet Protocol (IP)
to transmit information across the
Internet. It is possible to terminate (shut down) one direction of flow across a TCP
connection, leaving a one-way (simplex) connection. The Internet protocol suite is often
referred to as TCP/IP because TCP is one of the two most fundamental protocols.
TELNET. The Internet standard protocol for remote terminal connection service. TELNET
allows a user at one site to interact with remote timesharing systems at another site just
as if the user’s terminal is connected directly to the remote machine. That is, the user
invokes a TELNET application program that connects to a remote machine, prompts for
a login ID and password, and then passes keystrokes from the user’s terminal to the
remote machine and displays output from the remote machine on the user’s terminal.
Unicode. The 16-bit character encoding used by Java for the char and java.lang.String data
types.
URL. Uniform Resource Locator.
wait mode. In the NonStop Kernel operating system, the mode in which the called procedure
waits for the completion of an input/output (I/O) operation before returning a condition
code to the caller. Compare nowait mode
.
Web Container. a Java runtime environment that manages the lifecycle of servlets and JSP.
Web clients. Programs that execute on IBM-compatible PC, Apple Macintosh, or Unix
platforms, among others. They provide a graphic user interface (GUI) for access to
documents and programs on the Web. A web browser is the most familiar example of a
web client.