ZyXEL Communications Prestige 316 User Manual page 164

Pirated
Software
Plain Text
PNC
POP
Port (H/W)
Port
POTS
PPP
Privacy
Promiscuous
Packet Capture
Protocol
Proxy Server
PSTN
Glossary
Software that has been illegally copied, or that is being used in violation of the software's
licensing agreement. Pirated software is often distributed through pirate bulletin boards or on
the Internet. In the internet underground it is known as Warez.
The opposite of Cipher Text, Plain Text is readable by anyone.
Prestige Network Commander, a Windows®-based setup wizard for Prestige routers (not all).
Post Office Protocol. This is a common protocol used for sending, receiving and delivering
mail messages.
An interface on a computer for connecting peripherals or devices to the computer. A printer
port, for example, is an interface that is designed to have a printer connected to it. Ports can be
defined by specific hardware (such as a keyboard port) or through software.
An Internet port refers to a number that is part of a URL, appearing after a colon (J right
after the domain name. Every service on an Internet server listens on a particular port number
on that server. Most services have standard port numbers, e.g., web servers normally listen on
port 80.
Plain Old Telephone Service is the analog telephone service that runs over copper twisted-pair
wires and is based on the original Bell telephone system. Twisted-pair wires connect homes
and businesses to a neighborhood central office. This is called the local loop. The central
office is connected to other central offices and long-distance facilities.
Point to Point Protocol. PPP encapsulates and transmits IP (Internet Protocol) datagrams over
serial point-to-point links. PPP works with other protocols such as IPX (Internetwork Packet
Exchange). The protocol is defined in IETF (Internet Engineering Task Force) RFC-1661
through 1663. PPP provides router-to-router, host-to-router and host-to-host connections.
The service used to prevent the content of messages from being read by other than the
intended recipients.
Actively capturing packet information from a network. Most computers only collect packets
specifically addressed to them. Promiscuous packet capture acquires all network traffic it can
regardless of where the packets are addressed.
A "language" for communicating on a network. Protocols are sets of standards or rules used
to define, format and transmit data across a network. There are many different protocols used
on networks. For example, most web pages are transmitted using the HTTP protocol.
A server that performs network operations in lieu of other systems on the network. Proxy
servers are most often used as part of a firewall to mask the identity of users inside a
corporate network yet still provide access to the Internet. When a user connects to a proxy
server via a web browser or other networked application, he submits commands to the proxy
server. The server then submits those same commands to the Internet, yet without revealing
any information about the system that originally requested the information. Proxy servers are
an ideal way to also have all users on a corporate network channel through one point for all
external communications. Proxy servers can be configured to block certain kinds of
connections and stop some hacks.
Public Switched Telephone Network was put into place many years ago as a voice telephone
call-switching system. The system transmits voice calls as analog signals across copper
twisted cables from homes and businesses to neighborhood COs (central offices); this is often
Prestige 316 Broadband Sharing Gateway / Wireless LAN
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