Presentation (Internet Intranet Extranet)

8/13/2019 Presentation (Internet Intranet Extranet)

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Internet, Intranet andExtranets

Presentation by :

Othmane Zeikel Joudal Rachid


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PLANO 1. What is the internet

O 2. Hardware and Software of Internet

O 3.Application Of internetO 4.Advatanges of internet

O 5.Disadvatanges of internet

O 6. Intranet(introduction,Application

on,Firewall etc)

O 7.Extranet (same things)


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What is Internet ?O It is aGlobal network of computers,

(servers or clients).

to exchange information.

O It is a "network of networks"that includesmillionsof private and public, academic, business,and government networks (local or Global),

linkedby copper wires, wireless connections, andother technologies.


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Hardware and Software of

Internet

Variety of hardwareand softwareare used to

make Internet functional.

O Modem

Device that enables computers to communicate

through phone lines.

When we start internet the our modem

communicatesto modem of ISP.


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O Computer

In addition to a modem, you need a

client capable of handling multiple datatypes.

O Software

Twotypesof softwaresrequired to

enable your PC as an Internet PC.O Communication softwaretoestablish

connection

O Client software forbrowsing, e-mail,

news.

these softwares are provided with windows itself.

Hardware and Software of

Internet


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Applications Of InternetO Download programs and files

O E-Mail

O Voice and Video ConferencingO E-Commerce

O File Sharing

O Information browsing

O Search the web addresses for accessthrough search engine

O Chatting and many more


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Disadvantages of

InternetO Theft of personal informationsuch as name, address, credit

card number etc.

O Virus threatsnothing but a program which disrupts the normalfunctioning of your system.

O Spammingrefers to receiving unwanted e-mails in bulk, whichprovide no purpose and needlessly obstruct the entire system.

O Pornography This is perhaps the biggest threat related tochildrens healthy mental life. A very serious issue concerning

the Internet.

Though, internet can also create destruction and itscan be very fatal,

the advantagesof it outweigh its disadvantages.


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Intranet


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What is Intranet ?

O Internal company network that uses

Internet standards (HTML, HTTP &TCP/IP protocols) & software.

O Accessed only by authorized persons,

especially members or employees of theorganization


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Intranet SecurityTwo levels of Security required:

O InternalIt can be imposed by Public Key Security

& Encryption Key.

O External

Through Firewall.


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What is Firewall ?O Security device located between firms

internal network (intranet) & external

network (internet).

O Regulates access into & out of a

companys network based on a set of

rules.

Note : needs to be upgraded from time to time to

check latest potential security problems.


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Applications of IntranetO Sharing of company policies/rules &

regulations

O

Access employee databaseO Distribution of circulars/Office Orders

O Access product & customer data

O Sharing of information of common interest

O

Launching of personal/departmental homepages

O Submission of reports

O Corporate telephone directories
http://www.cio.com/WebMaster/strategy/http://www.cio.com/WebMaster/strategy/


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advantages


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Disadvantages

Information overload lowers productivity

True purpose of the Intranet is unknown to many

employees/departments

Hidden or unknown complexity and costs

Productivity

problem

Unauthorized access

Abuse of access

Denial of service

Security

problem

A company may not have person to update their

Fear of sharing information and the loss of control

Management

problem Intranet on a routine basis


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Extranet


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What is Extranet ?

O Extranet is an Intranet for outside authorized users

using same internet technology.

O Inter-organizational information system.

O enable outsiders to work together with companys

employees.

O open to selected suppliers, customers & other business partners


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Examples..O Dealers/distributors have access to

product files such as :-

1. product specification,2. pictures,

3. images, etc.

to answer the queries of the customer.


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Components of extranets ..

Some basic infrastructure componentssuch as the internet Including :-

O TCP/IP protocols,

O E-mail,

O Web-browsers,

O External business partners &

O Tele-commuting employees place order,check status & send E-mail.


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Benefits of Extranet

O Improved quality.

O lower travel costs.

O lower administrative & other overheadcosts.

O reduction in paperwork.

O delivery of accurate information on time.

O improved customer service.

O better communication.O overall improvement in business

effectiveness.


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Disadvantages

O The suppliers & customer who dont

have technical knowledge feel problem.

O Faceless contact.O Information can be misused by other

competitors.

O Fraud may be possible.

O Technical Employees are required.


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Clients, partners, customers

Layered System View

IntranetExtranet

Internet

Corporate members

Global society competitors


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THE ENDThank You

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