User's Manual

The Preset Applications are among the most widely used Internet applications

that may require forwarding. They include the following:

• FTP (File Transfer Protocol) A protocol used to transfer files over a TCP/IP

network (Internet, UNIX, etc.). For example, after developing the HTML

pages for a website on a local machine, they are typically uploaded to the

web server using FTP. FTP includes functions to log onto the network, list

directories, and copy files. It can also convert between the ASCII and

EBCDIC character codes. FTP operations can be performed by typing com-

mands at a command prompt or via an FTP utility running under a graphical

interface such as Windows. FTP transfers can also be initiated from within a

web browser by entering the URL preceded by ftp://.

• Telnet A terminal emulation protocol commonly used on Internet and

TCP/IP-based networks. It allows a user at a terminal or computer to log onto

a remote device and run a program.

• SMTP (Simple Mail Transfer Protocol) The standard e-mail protocol on the

Internet. It is a TCP/IP protocol that defines the message format and the

message transfer agent (MTA), which stores and forwards the mail.

• DNS (Domain Name System) The way that Internet domain names are

located and translated into IP addresses. A domain name is a meaningful and

easy-to-remember “handle” for an Internet address.

• TFTP (Trivial File Transfer Protocol) A version of the TCP/IP FTP proto-

col that has no directory or password capability.

• Finger A UNIX command widely used on the Internet to find out informa-

tion about a particular user, such as a telephone number, whether the user is

currently logged on, and the last time the user was logged on. The person

being “fingered” must have placed his or her profile on the system in order

for the information to be available. Fingering requires entering the full

user@domain address.

• HTTP (HyperText Transport Protocol) The communications protocol used

to connect to servers on the World Wide Web. Its primary function is to

establish a connection with a web server and transmit HTML pages to the

client web browser.

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