User guide

NNTP Network News Transfer Protocol. An Internet application protocol for reading and posting Usenet
(newsgroup) articles.
POP Post Office Protocol. An Internet protocol for retrieving email from a remote server over a TCP/IP
connection.
Port — A virtual data connection used by programs to exchange data.
Port Forwarding — A process that allows remote devices to connect to a specific computer within a private LAN.
Port Number — A number assigned to a user session and server application in an IP network.
Protocol A standard that enables connection, communication, and data transfer between computing
endpoints.
PPTP Point-to-point Tunneling Protocol. A method for implementing virtual private networks that does not
provide confidentiality or encryption.
PRL Preferred Roaming List. A list that your wireless phone or device uses to determine which networks to
connect with when you are roaming.
RFB — Remote Frame Buffer. A protocol for remote access to graphical user interfaces.
Router — A device that connects two networks.
RTP — Real-time Transport Protocol. A packet format for streaming multimedia over the Internet.
SMTP — Simple Mail Transfer Protocol. An Internet standard for email transmission across IP networks.
SSID — Service Set Identifier. The name assigned to a WLAN network.
TCP Transmission Control Protocol. A core protocol for transmitting and receiving information over the
Internet.
TCP/IP Transmission Control Protocol/Internet Protocol. A communications protocol developed under
contract from the U.S. Department of Defense to internetwork dissimilar systems.
Telnet — Telecommunication Network. A network protocol used on the Internet or on local area networks.
TFTP — Trivial File Transfer Protocol. A file transfer protocol with a subset of FTP functionality.
UDP — User Datagram Protocol. A simple transport protocol used to transfer information on the Internet.
VNC Virtual Network Computing. A graphical desktop sharing system that uses the RFB protocol to remotely
control another computer.
VPN — Virtual Private Network. A secure private network that runs over the public Internet.
VPN Passthrough — A feature that allows a client to establish a tunnel only with a specific VPN server.
WAN Wide Area Network. A public network that extends beyond architectural, geographical, or political
boundaries (unlike a LAN, which is usually a private network located within a room, building, or other limited
area).
WEP Wired Equivalent Privacy. An IEEE standard security protocol for 802.11 networks. Superseded by WPA
and WPA2.
WLAN Wireless Fidelity. Any system that uses the 802.11 standard developed and released in 1997 by the
IEEE (Institute of Electrical and Electronics Engineers).
WLAN Client — A wireless device that connects to the Internet via WLAN.
WLAN WLAN LAN. A typically low-power network that transmits a wireless signal over a span of a few
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