ActionTec DSL GATEWAY GT704 Bedienungsanleitung PDF herunterladen (Seite 120)

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Actiontec 54 Mbps Wireless DSL Gateway User Manual

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Appendix F Firewall Security

Basic Security Level

NAT (Network Address Translation) only.

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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