Appendix f Firewall Security Level Services

Off

If Off is selected, only NAT (Network Address Translation) security is active.

Service Acronym Definitions

http

HyperText Transfer Protocol. This protocol delivers information over the Internet, and is used when a computer connects to a Web site via an Internet browser.

dns

Domain Name System. A data query system used to translate host names into Internet addresses (i.e., www.somewebsite.com translates to 888.999.000.111).

ftp

File Transfer Protocol. A protocol used to transfer files over the Internet.

telnet

An Internet communications protocol enabling one computer to function as a terminal working from another (remote) computer.

smtp

Simple Mail Transfer Protocol. A protocol used to transfer E-mail between computers over the Internet. Can be used to send and receive mail.

pop3

Post Office Protocol 3. Another protocol used to transfer E-mail between computers. Usually employs a pop3 server, and is used to receive mail only.

nntp

Network News Transfer Protocol. A protocol used to distribute and retrieve news articles over the Internet.

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Actiontec electronic GT701WG-QW04 user manual Service Acronym Definitions