web utilities ( ftp and telnet )

7/31/2019 Web Utilities ( FTP and Telnet )

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COMPUTER ESSENTIALS

(FP105)

Discuss the web utilities about the FTP and Telnet. Your discussion

should include those criteria:

a. Application of FTP and Telnet in real life

Both of these applications allow two different computers to communicate with each

other.

Telnet allows the user to log on to an account on a remote computer and work as if you

were there.This is useful if you are traveling or are going to be away from your own computer and

your local account but need to have access to the latter.

You might be at a conference in another state and suddenly remember that you need

some information that is stored on a file in your account back at your home institution.

You can log on remotely, telnet to your account, get into your files that are on that server,

and retrieve the information.

For example,

Let’s say you are at ACTFL and you are supposed to meet some people but you forgot

the time and the place. They sent you this information in an e-mail message, and you

have that message in your account on the server at your institution. If you can use a

computer with Internet access where you are, you can telnet to your account, call up the

message, and read the information off the screen. Voilá --you won't miss your dinner

date.

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Simple Explanation:

FTP (File Transfer Protocol) is a method of transferring files from one computer to another

over the Internet. It has two major purposes:

To moves files (programs and data or text) from one computer to another.

Example: when you send an mail attachment to me and I download it.

To get public domain and shareware files that I can use on my computer

Telnet is the Internet protocol for connecting to a remote computer. It is a terminal emulator, a

piece of software used to login from a local computer to a remote computer. It is a tool that

allows you to remotely connect into other computers and access them just as if you were sittingdirectly in front of them.

b. Advantages using FTP and Telnet

FTP

1. FTP is the fast and efficient way of transferring bulks of data across the internet.

2. It has an automatic backup .Whenever you edit your files in your local system you can

update the same by copying it to the host system in your site. So in cases where your site

has crashed and all the data is lost you have a copy of it in your own local system. It also

works the other way round.

3. FTP gives you control over transfer. That is, you can choose the mode in which the

data is transferred over the network. The data can be transferred either in the ASCII mode(for text files) or in the Binary mode(for executables or compressed files).

4. You can work with the directories on the remote systems, delete or rename the remote

files while transferring data between 2 hosts.

5. While using FTP, tools like macros can also be used to make your work more efficient

and easier.

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Telnet

The big advantage of telnet is that it saves you are able to use another computer

elsewhere in the world without actually being there. You are actually connected to that

machine.

You can use other computers, fix other people's computer problems, play games with

other people (MUD games -- see your textbook for a discussion), etc.,all without leaving

your seat.

c. Differentiate between FTP and Telnet

File Transfer Protocol ( FTP ) Telnet

Used to transferring files back and forth

(uploading / downloading), deleting files, stuff

like that.

Used to transfer files via telnet, its main

differences is you can execute commands

(simple ones such as dir, CDs and the like) tomore advanced things like starting/restarting

services and such.

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d. Requirement to use FTP and Telnet

FTP

Using Fetch

NOTE: Windows people can use: WS_FTP LE ---- This is free!!!!

Screens for the program:

Start-up Screen

After logging on to the FTP site, a dialog box similar to the following will appear, showing

directories and files.

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TELNET

You need a special application to telnet from a Mac or a PC.

You need to know is the hostname or the IP address of the computer that you want to

connect to.

Using telnet is as simple as launching the telnet application, and then opening a

connection to a host (usually under the File menu). Once the connection is established,

you can interact with the remote computer directly by typing commands.

Sometimes, when you connect to a remote computer, you will be asked for your

"terminal type", or what sort of terminal you are emulating. The safest response to this is

VT100, which is a type of dumb terminal made by DEC in the 1970s, and which almost

all telnet applications support. Telnet connections can be expressed as URLs, as well. When Netscape sees a URL like

this one: telnet://pac.carl.org

..it will launch your telnet application. (provided you have one and Netscape has it listed in the

Applications and Directories section of the Preferences).

Example 1: Menu Driven Telnet

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Example 2 - Command Driven Telnet

Notice that Telnet is completely menu (example #1) or command driven (example #2) -- no graphics all

text .

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